Tag: sbpmat

Plenary lectures: world-class science with social impact.

Posted on Thursday 30 de October de 2014
Plenary lectures: very good attendance.

The scene repeated itself daily while the event lasted: around 8.30 a.m. and 2 p.m., under the strong João Pessoa sun, lines of hundreds of participants entered the convention center and settled at the refrigerated plenary room. There, scientists with outstanding careers, attested by their H indexes of values ranging from 40 and 73, coming from England, France, Germany, Italy, Portugal and United States, shared their knowledge about matters on which they are, without a shadow of a doubt, qualified specialists.

In the event’s final plenary lecture, Robert Chang, professor at the first department of materials science in the world, at Northwestern University, resumed two subjects that had been explained by Professor Arana Varela in the memorial lecture, and which permeated almost every plenary. The first one is the essential role that materials field and, in particular, nanotechnology play in meeting, in a sustainable way, the needs and demands of humanity in healthcare, food, transportation, security and communication. The second subject is the need for collaboration to face this challenge of the 21st century.

In this context Chang, who was president of the American Materials Research Society (MRS) and founded in 1991 the International Union of Materials Research Societies (IUMRS), called upon the young Brazilians [see video below] to be part of a global network released in 2012, which promotes the interaction of young researchers in the field around these global challenges through a biennial conference and virtual platforms.

However, Chang said, the scientific collaboration among physicists, chemists, engineers, mathematicians, biologists and other researchers to develop the necessary technologies is insufficient. It is also necessary, he added, to rely on the collective, global effort from governments, companies, communities, families and individuals to deploy these technologies on peoples’ daily lives. “That requires education”, he said. For the last 20 years, the scientist has conducted the Materials World Modules Programme, which developed interactive educational material about Materials and Nanotechnology for middle and high-school students.

Nanomedicine

Luís Carlos

Portuguese professor Luís Carlos, from the University of Aveiro, brought to XIII SBPMat Meeting many examples about the applications of nanotechnology in the healthcare field that are making a difference, or may make a difference in the short-term.

Being an expert in luminescent materials, which emit light not derived from heat, the scientist showed in his plenary lecture that these materials are already of great use in medical diagnosis. Luminescent organic complexes, for example, are marketed as contrast agents for magnetic resonance imaging, and as markers for fluoroimmunoassays (used in pre- and neonatal screening and detection of proteins, viruses, antibodies, drug residues etc.).

Besides, Luís Carlos said, luminescent nanoparticles (quantum dots and nanocrystals with lanthanide ions) emerge in diagnostic techniques and also in treatments, such as the hyperthermia process. This consists in the exposition of biological tissues, usually cancerous cells, at temperatures above 45°C, causing their deaths, with minimum collateral lesions to surrounding normal tissues. With proper temperature monitoring and control, the technique can soon become popular.

For the last few years, there have been efforts to develop nanothermometers that measure intracellular temperature to service this and other applications, not only regarding Nanomedicine, but also in fields such as Microelectronics, Photonics and Microfluidics. A successful example, presented by Luís Carlos at the plenary, is the development of a nanometric platform composed by nanorods, which work as thermometers, with gold nanoparticles on its surface, which function as heaters. This is a platform that, in contrast to its small size, can bring great benefits to the improvement of the technique of hyperthermia and the study of the processes of heat transfer at the nanoscale.

LEDs and other gallium nitride devices: savings of 25% in the global electricity consumption

Sir Colin Humphreys

When the Nobel Prize in Physics was announced for three Japanese scientists whose works were essential for the development of LED white light bulbs, those who had participated in XIII SBPMat Meeting certainly remembered the plenary lecture by Sir Colin Humphreys from University of Cambridge. The material chosen by the laureates when they decided to face the challenge of creating the blue LED that would allow the white light emitting LED was gallium nitride, which was also the object of Sir Colin’s lecture.

Professor Humphreys is an expert in this material. He created and directs a research center in Cambridge devoted to gallium nitride, and he also founded two spinoff companies to commercially exploit the technology developed by his research group and manufacture LEDs grown on relatively large silicon wafers, of about 15 cm, for low cost lighting. In 2012, the spinoffs were purchased by Plessey, a manufacturer of products based on semiconductor materials with over 50 years in the market. Now these LEDs are produced by Plessey in the United Kingdom.

The gallium nitride LED bulb currently offers one of the longest shelf lives in the market – 100,000 hours of use, equivalent to 69 years without switching the bulb, against 1,000 hours of life of the incandescent light bulb and 10,000 of the fluorescent. These LEDs also provide high energetic efficiency, ranging from 100 to 200 lumens (amount of light emitted in a second) per watt of power consumed.

At the plenary lecture, Sir Colin showed that the widespread use of LEDs in lighting would result in savings of about 15% in the total electricity consumed on the planet, and thus in a substantial decrease in emissions of carbon dioxide. In fact, lighting is one of the few segments where devices with high-energy efficiency are not yet universal.

More energy can be saved, Professor Humphreys said, by replacing silicon by gallium nitride in various electronic devices. In total, Humphreys concluded, up to 25% of all electricity used in the world today could be saved, reason why, added to the other applications of gallium nitride in the healthcare field, it was enough for the British scientist to state that this manmade material is one of the most important in the world.

Organic semiconductors: OLEDs and solar cells in the spotlight

Karl Leo

Just like it happens with LEDs, the OLEDs, which are manufactured with organic materials justifying the “O” in the acronym, directly convert electricity into light and are, therefore, devices with high potential efficiency, which has been improved every year. Having each one particular advantages, LEDs and OLEDs already compete in certain markets, such as the one of displays and, in a more incipient manner in the case of organics, in the lighting market.

Along with organic solar cells, OLEDs were the focus of Karl Leo’s plenary lecture. He is a professor at the German TU Dresden and at the Saudi Arabian KAUST universities, and wrote over 550 papers with 23,000 references and 50 patent families. He is also founder of 8 spinoff companies, such as Heliatek and Novaled, which manufacture organic solar cells and OLEDs, respectively.

Professor Leo showed an important quantity of results achieved by his research groups, regarding the improvement of organic semiconductor devices. Along with his collaborators, Karl Leo has developed an extensive work about doping organic semiconductors in the transport layers of OLEDs and solar cells to increase significantly their electrical conductivity. This work resulted, for example, in obtaining white light-emitting OLEDs with energetic efficiency greater than those of fluorescent tubes.

From the left, A. Salleo, F. So, R. Faria, H. von Seggern and J. Nelson.

Karl Leo was not the only internationally renowned scientist in João Pessoa in the field of organic semiconductors. On Wednesday afternoon, a roundtable organized by Symposium D gathered four of these specialists: Alberto Salleo (Stanford University), Franky So (University of Florida), Heinz von Seggern (TU Darmstadt) and Jenny Nelson (Imperial College London). Moderated by a prominent Brazilian scientist of the field, Roberto Mendonça Faria, professor at the São Carlos Institute of Physics at University of São Paulo and SBPMat president, the session gathered dozens of participants of the meeting, of various ages, that actively participated at the debate.

The discussion was around the challenges of organic electronics, from basic research to mass production (or individual production, as pointed out by a young man of the public drawing attention to the 3D printing techniques). Various subjects of the scientific, industrial and social fields were addressed bythe panelists based on the audience’s questions. “Fortunately, there are challenges for Materials Science. Unfortunately, there are challenges for mass production,” Professor Faria summed up, resuming, somehow, one of the first lines of the round table, in which Professor Jenny Nelson lamented that the scientific community celebrated a lot more the development of a device that works than the understanding of why a particular device did not work.

Alberto Salleo

Alberto Salleo, creator of a group in Stanford that studies the relation between structure and properties on polymeric semiconductors to better understand the charge generation and transport, also delivered a plenary lecture at the event. In the lecture, Salleo cast doubt on the universality of a widespread assumption that links a high degree of crystallinity (or order) in the microstructure of these polymers to a higher charge mobility, or better performance of the devices. The scientist showed that the disorder is good for organic solar cells and cited examples of almost amorphous semiconducting polymers having similar performance to others much ordered.

Professor Salleo presented a model developed by his group to show how the charge transport in organic semiconductors works, since they are materials with heterogeneous microstructures, where disordered and ordered aggregates coexist with each other and with long polymer chains. In order to have high charge mobility, Salleo revealed, the important thing is for the aggregates to connect among themselves, which happens through the polymeric “spaghetti”.

Order, but without periodicity

Jean-Marie Dubois

The quasicrystals are far from the disorder, but also outside the traditional crystalline order. These materials were the general theme of the plenary of French researcher Jean-Marie Dubois, from Institut Jean Lamour, whose experience in this field was recognized by the scientific community through the creation of the “Jean-Marie Dubois International Award”, given every three years to research works related to quasicrystals.

First, Dubois presented an introduction to quasicrystals, materials in which the atoms are grouped into unit cells in patterns which are ordered (which may be determined by algorithms) but not periodic (never repeat themselves). Beautiful scientific and artistic images intermixed in Dubois’ presentation allowed the audience to view this aperiodic order.

The lecturer also paid homage to Dan Shechtman, who discovered quasicrystals in 1982 and, after many fights and resistance in the scientific community, eventually won the Nobel Prize in Chemistry in 2011 and generated a big shift in the vision of ordered condensed matter. Today, quasicrystalline materials are synthesized and used in various products, such as auto parts and pans, to improve their thermal conductivity, adhesion, friction, corrosion resistance etc. It is noteworthy that Dubois is among the pioneers in filing patents targeting applications of quasicrystals.

The quasicrystalline order can be observed in various types of materials. In the lecture at the XIII SBPMat Meeting, Dubois addressed, in particular, metal alloys formed by three elements (A, B and C), in which A – B and B – C form chemical bonds, while B and C repel themselves. Named by Dubois “push-pull alloys”, these materials can form very complex intermetallic compounds, with up to hundreds of atoms per unit cell. Among these, only a few can further increase their complexity to form a quasicrystalline order, which results in unique properties and open up possibilities for new applications.

Computer simulation

Roberto Dovesi

In another plenary lecture of the XIII SBPMat Meeting, supporters of computer simulation as a complement to the experimental work in the investigation of material properties, and those interested in using it, were able to hear from Professor Roberto Dovesi (Università di Torino) that this dual approach is worthwhile.

Dovesi is one of the creators of CRYSTAL, a computational tool that allows the characterization of crystalline solids from the point of view of quantum mechanics, through ab initio calculations. The first version of the program was developed from 1976 onwards and released in 1988, making CRYSTAL the first periodic code distributed publicly to the scientific community. Now in its seventh version, the program allows the study of elastic, piezoelectric, photoelastic and dielectric properties, polarizability and hyperpolarizability tensors, IR and RAMAN spectrum, structure of electronic and phononic bands, among other properties.

The Italian chemist highlighted the affordable price and high working speed of today’s computers that are suitable to run such programs. As an example, he cited a machien recently acquired by his research group for computer simulation, which, costing around 6,500 euros, is able to do long calculations in a few hours with its 64 cores. Supercomputers are not necessary, Dovesi said, and are less robust. As for software, Dovesi remarked that today the field of materials has powerful, robust, easy-to-use programs at affordable prices (a basic license of the latest version of CRYSTAL, for example, costs 600 euros.

13th SBPMat Meeting: about 2,000 works presented, and interactions in various languages and accents.

Posted on Thursday 30 de October de 2014
Partial view of the convention center during the meeting.

About 1,650 people connected to research in Materials Science and Engineering and other related fields were at the “Poeta Ronaldo Cunha Lima” Convention Center, in the city of João Pessoa (State of Paraíba), between September 28th and October 2nd, participating in the intense program of the 13th Meeting of the Brazilian Materials Research Society (SBPMat).

The number of attendees at this year’s annual event represented an increase of approximately 15% in comparison to the previous edition. Maintaining its international nature, the event featured entries from 20 countries of the most diverse regions of the planet, with a predominance of researchers from South America and Europe. Within Brazil, the five regions of the country were represented, with attendees from 23 states of the country, among the existing 27.

The opening

Opening panel: from the reader´s left, Jackson Lima, Claudio Furtado, Ieda Garcia, Roberto Faria e José A. Varela.

It was already nighttime in the city of João Pessoa on Sunday, September 28, when Professor Roberto Faria, President of SBPMat, formally opened the event. “The meeting is opened”, he declared facing the nearly 1,200 people gathered in the plenary room of the convention center. In addition to Professor Faria, the opening panel was composed by the chairs of the event, Professor Iêda Maria Garcia dos Santos and Severino Jackson Guedes Lima, both from the Federal University of Paraíba; the President of the Paraíba Research Foundation (FAPESQ-PB), Professor Claudio Benedito Silva Furtado, and the CEO of the São Paulo Research Foundation (FAPESP), José Arana Varela.

José Arana Varela in the Memorial Lecture Joaquim Costa Ribeiro.

After the opening ceremony, Professor Arana Varela delivered the Memorial Lecture “Joaquim Costa Ribeiro”, which is a distinction bestowed annually by SBPMat on a Brazilian researcher with an outstanding career in the field of Materials. The chosen scientist receives a plaque and presents a lecture at the beginning of the annual meeting of the society. The memorial lecture also pays homage, through its name, to one of the first Brazilian researchers who dedicated themselves to studying materials, engineer Joaquim Costa Ribeiro (1906 – 1960).

Among various subjects connected to the evolution of Materials Science, such as the creation of several scientific societies in the world in the field of materials, Arana Varela presented data about the quantity and impact of the articles published by Brazilian authors in Materials Science. The graphics caught the attention of the public to show that, until the late 1990s, annual production in the field was below 400 articles, but exceeds 1,000 since 2012. By analyzing the relative impact of these publications, Arana Varela showed that Brazil has traveled a path not so constant, and that currently does not go through its best moment. “Now the challenge is to raise the international impact of the research conducted in Brazil,” said the lecturer

Right after the lecture, the participants went to the foyer area and the VIP room, where they enjoyed the opening cocktail. In a celebratory mood, meetings occurred in several languages and with different accents, probably leading to new collaborations, ideas and friendships by the end of the event.

About 2,000 works presented

Starting on Monday, plenary lectures by internationally renowned scientists opened up the morning and afternoon periods, followed by presentations of the accepted papers in the 19 thematic simultaneous symposia.

In 14 rooms, simultaneous presentations of the 19 symposia.

In addition to 105 invited lectures given by scientists from Brazil and several other countries, about 2,000 works, including oral presentations and posters, were presented and discussed at the symposia. This “universe” included topics such as organic electronics, materials for nanomedicine, hybrid interfaces, surfaces and coatings, chemical methods, sol-gel processes, magnetic materials, luminescent materials, graphene, carbon, electroceramics, advanced metals, anti-fouling materials, clays, cementitious materials, computational simulations, energy storage systems and technology transfer.

Much scientific discussion in the poster sessions.

The symposia at SBPMat meetings are selected from proposals that can be submitted to the event committee by any scientist from anywhere in the world. This edition of the event registered coordinators of symposia linked to universities, research institutes and companies, such as Petrobras, from the Southern, Southeastern and Northeastern regions of Brazil, as well as Argentina, France, Germany, Spain, Sweden, United Kingdom and USA.

On the last day of the event, during the closing ceremony, the winners of the Bernhard Gross Award were announced. The award is granted by SBPMat to the best works of each symposium presented by undergraduate or graduate students, which represented 67% of the total attendees in this year’s meeting. The award honors another pioneer researcher in the field of Materials in Brazil, the engineer and physicist Bernhard Gross (1905 – 2002). This year, twenty young scientists received the distinction for their works, conducted within their master’s, doctoral or undergraduate researches in Brazilian universities.

A varied schedule

Coffee break and exhibition.

During the coffee breaks, it was hard to walk through the foyer, crowded with participants that, with coffee and a muffin or a sandwich in hand, visited the stands of the 30 exhibitors that were disclosing their scientific instruments, techniques, materials, services, projects and publications.

Those interested in learning more about Shimadzu/Tescan’s SEM with TOF SIMS detector, or about Sample Preparation with DualBeam™ and MET analysis by FEI had the opportunity to attend, right after a quick lunch and before the afternoon’s plenaries, the technical lectures of these companies, sponsors of the meeting.

This SBPMat meeting was also the stage for the disclosure of two important actions undertaken in the context of the society during 2014. The first one was the creation of four units of SPBMat’s University Chapters Programme in the states of Minas Gerais, Piauí and São Paulo. This program, intended for undergraduate and graduate students, gathered for the first time at the meeting held in João Pessoa. The second disclosure concerned the release of a document produced by the Institute of Physics (IOP) for SBPMat about Materials Science in Brazil, which was distributed firsthand to each of the participants of the 13th Meeting.

Time to wrap it up…

Applause for the chairlady at the end.

Following the ceremony of the Bernhard Gross Award, the time to close formally SBPMat’s 13th Meeting had come. Chairlady Iêda Garcia dos Santos presented a few of the event’s numbers and went to the acknowledgements: she thanked the participants, the organizing team, the volunteers from universities from the states of Paraíba and Rio Grande do Norte that helped in the organization, the committees, symposium coordinators, speakers, sponsors, supporters and exhibitors. At that moment, SBPMat’s President, Roberto Faria, spoke, expressing his gratitude to the coordinators of the event.

Announcement of the next SBPMat meeting.

To finish it all, Professor Marco Cremona, coordinator of the society’s next event, announced that the XIV SBPMat Meeting would be held in Rio de Janeiro, from September 27 to October 1 2015, at the SulAmérica Convention Center – a space easily and quickly accessible from any neighborhood of the “Wonderful City”.

With the double joy of taking part in a beautiful event, and the perspective of a reunion in twelve months, the participants, organizers and speakers that were still at the convention center socialized around a series of regional delicacies that left a taste of sea in the mouth, perhaps intensifying the desire of many to spend this afternoon on the beautiful beaches of Paraíba.

SBPMat newsletter. English edition. Year 1, issue 9 – special: XIII SBPMat Meeting.

Posted on Thursday 25 de September de 2014

 

Brazilian Materials Research Society (SBPMat) newsletter

News update from Brazil for the Materials community

 

English edition. Year 1, issue 9. 

Greetings, .

Final arrangements for our meeting in João Pessoa!

– Read the message of the chairs of the event, which this year accepted 2,141 papers and has nearly 2,000 registrations from 28 countries so far. In the message, professors Ieda Garcia and Severino de Lima show the highlights of the program of this year’s meeting! Here.

– After lunch and before the afternoon plenary lectures, you can attend technical lectures of the meeting´s sponsors in João Pessoa: Shimadzu/Tescan will discourse about SEM with ion beam and TOF SIMS detector, and FEI will address DualBeam TEM. Learn more.

– Why is João Pessoa called “the sun door“? Learn more about the city, one of the oldest in Brazil, and its natural and cultural features. And get ready to dive into green waters at 28 °C! Read about João Pessoa.

– What to pack? Track the weather, whose temperatures should be between 20 °C and 30 °C. But pay attention, the meeting organization warns that, at the Convention Center, the air conditioner will make the room fresh … Link to weather in João Pessoa.

– Registration: here.

– Program at a glance: here.

– Detailed schedule. Search for times and locations of symposia presentations: here.

–  Some options of accommodation, car rental, transfers from the airports of the region, transportation from hotels to convention center, and tours: see on the home page of the site of the event.

– And what about the conference party? This year, it will be held on Wednesday evening at Espaço Caixa Econômica Federal in Cabo Branco. Tickets may be purchased in the information desk as of Monday 1 p.m..

  

Interviews with our plenary speakers
We interviewed Robert Chang, professor of the first department of Materials Science in the world at Northwestern University. Besides having a remarkable career as a researcher (his H index is 56), “Bob” has dedicated the past 20 years guiding the development of the Materials World Modules program, which develops educational, interactive and playful material (for example, card games) on Materials and Nanotechnology for pre-college students and their teachers. In his plenary lecture at the XIII SBPMat Meeting, Professor Chang will try to mobilize citizens of the world to solve global problems together. See our interview with the scientist. 


We also spoke with Professor Colin Humphreys, a professor at the University of Cambridge.  Among other honors, the scientist was knighted by the Queen of England for his services to science. Besides being the author of over 600 publications, the professor developed materials for the industry that currently fly in aircraft engines and created low cost LEDs based on gallium nitride, material on which he specialized. In João Pessoa, he will show, among other issues, how gallium nitride could reduce electricity consumption by 25% in the world. See our interview with Colin Humphreys.










We interviewed the German physicist Karl Leo, specialist in organic semiconductors. Beyond being the author of more than 550 papers with more than 23,000 citations and 50 families of patents, the scientist has already participated of the creation of 8 spin-off companies. In his lecture at the XIII SBPMat Meeting, Karl Leo will speak on highly efficient organic devices, as OLEDs and solar cells. See our interview with Karl Leo.








We also spoke with the Portuguese physicist Antonio Luis Ferreira Martins Dias Carlos, of the University of Aveiro, who will perform a lecture in our meeting in João Pessoa on luminescence applied to nanomedicine. In the interview, the professor shared with us his most prominent works in the field of Materials. He also told us about some challenges in the area of luminescence for medical applications, both in medical imaging and intra-cellular temperature mapping, and cited examples of applications of luminescent materials that have already been used in the diagnosis and treatment of various diseases. See our interview with Luis Dias Carlos.











We interviewed the French scientist Jean-Marie Dubois (Institut Jean-Lamour), specialist in quasicrystals (ordered, but aperiodic structures on solid materials) and pioneer in patenting applications for them. He told us a little about his main contributions to the field of Materials and gave a teaser on the theme of his plenary lecture in the XIII SBPMat Meeting: he will talk about quasicrystal structures, found in metallic alloys, polymers, oxides and artificial nanostructures, and their unprecedented properties. In the picture, Jean-Marie Dubois (on the left) and Dan Shechtman, who received a Nobel Prize in 2011 for the quasicrystals, using equal ties, both decorated with the Penrose tiling, an example of aperiodicity.  Read our interview with Jean-Marie Dubois here.








We also interviewed the Italian chemist Roberto Dovesi (Universita’ degli Studi di Torino), one of the creators of CRYSTAL, a computational tool for ab initio quantum calculations used in the study of several solid materials properties. The CRYSTAL code is currently used in over 350 laboratories around the world.  In his plenary lecture in the XIII SBPMat Meeting, Dovesi will attempt to demonstrate that today quantum simulations may be very useful tools to complement experiments. See our interview with Roberto Dovesi.











We have interviewed Professor Alberto Salleo, from Stanford University, who is going to give a plenary lecture on organic electronic devices in the XIII SBPMat Meeting. Young, yet holding a career that stands out internationally, Salleo told us about the work conducted by his group, which has been developing a deeper understanding on the role provided by the defects in charge transport in organic semiconductors. He also shared with us his main papers, published in Nature Materials. Finally, Salleo discussed the next challenges and applications on organic electronics, and anticipated what he is going to address in the plenary lecture, which promises to be very informative while mild enough for a wider audience. Read our interview with Alberto Salleo.












To suggest news, opportunities, events or reading recommendations items for inclusion in our newsletter, write to comunicacao@sbpmat.org.br.





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Interviews with plenary lecturers of the XIII SBPMat Meeting: Sir Colin Humphreys (University of Cambridge, U.K.).

				

			Posted on Friday 19 de September de 2014		

			


	

		
Professor Sir Colin Humphreys.


Sir Colin Humphreys, PhD from Cambridge and a BSc from Imperial College, is Professor of Materials Science and Director of Research in the Department of Materials Science and Metallurgy at the University of Cambridge (United Kingdom). His research covers three main areas: gallium nitride  (GaN) materials and devices, advanced electron microscopy, and ultra-high temperature aerospace materials. He has published hundreds of papers on electron microscopy and given many plenary and invited lectures throughout the world. He has received national and international medals for his research in electron diffraction and microscopy and on gallium nitride.


He founded a spin-off company (CamGaN) to exploit the research on gallium nitride of his group on low-cost LEDs for home and office lighting. The company was acquired in February 2012 by Plessey, which manufactures LEDs based on this technology. He is the founder and director of the Cambridge Centre for Gallium Nitride, a center with world-class growth and characterization facilities where research is carried out from fundamental studies on GaN to applications in LEDs and lasers. He also founded and directs the Cambridge/Rolls-Royce Centre for Advanced Materials for Aerospace, which developed materials that now fly in Rolls-Royce engines.


He is a fellow of the Royal Society, the self-governing Fellowship of many of the world’s most distinguished scientists drawn from all areas of science, engineering, and medicine, and of the Royal Academy of Engineering. He is also a fellow of Selwyn College, one of the Cambridge University 31 autonomous units in which students live, eat, socialise and receive some teaching sessions. In 2010 he was Knighted (receive a special honor and the title of Sir from the Queen of England) for services to science.


Professor Humphreys has authored over 600 peer reviewed papers with over 9,400 citations and his h-index is 43.


In his limited spare time he writes books on science and religion, such as “The Mystery of the Last Supper: Reconstructing the Final Days of Jesus”, which has recently been translated into Russian, German, Portuguese, Japanese and Greek.


Read our interview with the plenary speaker.


SBPMat newsletter: – Why do you think gallium nitride is one of the most important semiconductor materials? Which are the main challenges in the field of gallium nitride for materials scientists and engineers?


Sir Colin Humphreys: – I think gallium nitride is one of the most important semiconductor materials because of the huge range of potential applications and the benefits to mankind which will result from these applications. The main challenges to realising these applications are reducing the cost of GaN devices and improving the efficiency still further.


SBPMat newsletter: – Which are the principal contributions you have done for the development of Materials Science and Engineering?


Sir Colin Humphreys: – The principal contributions I have made for the development of Materials Science and Engineering are solving some fascinating problems in basic science and also developing materials for industry. For example, I direct a Rolls-Royce Centre in Cambridge on Advanced Materials, and some of the materials we have developed are now flying in Rolls-Royce engines. In addition, I direct the Cambridge Centre for Gallium Nitride, and the low-cost GaN LEDs on silicon that we developed are now being manufactured in the UK by Plessey.


SBPMat newsletter: – Brazil is making efforts to transfer technology to the industry. You have founded a spin-off company and research centers, in both cases having good technology transfer results. Based on these experiences, what would you say to the Brazilian Materials community about making technology transfer real?


Sir Colin Humphreys: – First, scientists and engineers have to have an idea for a new or better product. In order to convince industry, it is important that the scientists and engineers make prototype devices to show to industry. If the scientists and engineers decide to set up their own company, it is usually helpful to bring in a CEO from outside to run the company because most scientists and engineers are not so good at running a company. The choice of the CEO is critical. It is also possible to set up a company for virtually nothing, set up a website for virtually nothing, etc. It is really important to get lots of good advice. I was fortunate in setting up two companies, in that I got a lot of good advice for free because there are a lot of people around Cambridge in the UK that have set up companies and can give good advice. Finally, making technology transfer real is good fun, but also hard work! You may have lots of set-backs, but keep persevering! Also, be enthusiastic about your product, if you are not enthusiastic, no-one else will be! You have really to believe in what you are doing.


GaN LEDs on a 6-inch Si substrate.


SBPMat newsletter: – If possible, tell us a little about the topic of your plenary talk at SBPMat meeting.


Sir Colin Humphreys: – In my plenary talk at João Pessoa I plan to start by showing some striking atomic-resolution electron micrographs showing single silicon impurity atoms in graphene, and showing that they can occupy two different sites. I will also show images of dancing silicon atoms in graphene (I know Brazilians are experts in dancing!). I will then move on to talk about Gallium Nitride (GaN) and how this amazing man-made material is likely to save more energy and CO2 emissions than solar, wind-power and biomass together! I will describe how advanced electron microscopy and atom probe tomography have been used to solve the fascinating problem of why GaN LEDs are so bright when the dislocation density is so high. I will also describe how growing GaN LEDs on large area silicon substrates can substantially reduce the cost of LEDs, and this cost reduction is likely to enable GaN LEDs to be the dominant form of lighting in our homes, offices, streets, etc, in the near future. In addition, I will show how GaN-based power electronic devices are 40% more efficient than silicon power electronic devices, so replacing Si power electronics by GaN would save another 10% of electricity, on top of the 10-15% electricity savings from using GaN LEDs. So GaN could potentially save 25% of the world’s electricity consumption, which is amazing.


In addition to saving energy and carbon emissions, if aluminium is added to GaN, then deep-ultra-violet (UV) light is emitted and this can kill all bacteria and viruses. So such deep-UV LEDs could be used for water purification in the world, saving millions of lives. Finally I will talk about how optimised quality LED lighting can improve the health of all of us and the exam results of school children! My talk will range from basic science through to applications.


			


	


			
				


	

		
XIII SBPMat meeting: registrations, program highlights and thanks in the message from the chairs.

				

			Posted on Thursday 18 de September de 2014		

			


	

		
Dear readers,


We hope to see you at the XIII Brazilian Materials Research Society Meeting, held on 28 September to 02 October, 2014, in João Pessoa, PB, Brazil. This year the meeting has 2,141 accepted abstracts and, up to this moment, almost 2,000 inscriptions from Brazil and other 27 countries.


The XIII Meeting is comprised of 19 Symposia following the format used in tradicional meetings of Materials Research Societies, involving topics as synthesis of new materials, computer simulations, optical, magnetic and electronic properties, traditional materials as clays and cements, advanced metals, carbon and graphene nanostructures, nanomaterials for nanostructures, energy storage systems, composites, surface engineering and others. A novelty is a symposium dedicated to the innovation and technology transfer in materials research. The program also includes 7 Plenary Lectures presented by internationally renowned researchers.


This year, the B-MRS will present the results of two important actions from our society. The first one is the meeting of the B-MRS directory with the University Chapters (UC) already established and the students who want to establish other UC´s. The second one is the launch of the IOP publication on behalf of the B-MRS, Materials Science Impact, reporting advances in Materials Research in Brazil.


The Opening Ceremony will be followed by the Memorial Lecture “Joaquim Costa Ribeiro”, Progresses in Materials Research in Brazil by Professor José Arana Varela. During the Closing Ceremony the symposium coordinators will honor students with the “Bernhard Gross Award” for the best poster and the best oral presentation of each Symposium.


On behalf of Organizing Committee, we would like to thank the Brazilian Materials Research Society staff and board, the hired agencies, the symposium coordinators, the program, local and national committee members, for their commitment and great effort to make this Meeting possible.


We hope that the participants will have a very pleasant Meeting with stimulating exchange of scientific informations and establishment of new collaborations.


Ieda M. Garcia dos Santos and Severino Jackson Guedes de Lima


Meeting Chairs


			


	


			
				


	

		
SBPMat newsletter. English edition. Year 1, issue 7.

				

			Posted on Monday 4 de August de 2014		

			


	

		
















Brazilian Materials Research Society (SBPMat) newsletter




News update from Brazil for the Materials community


 







English edition. Year 1, issue 7. 








Greetings, .








XIII SBPMat meeting (João Pessoa, September 28th to October 2nd)






– Have you made your registration yet? Take advantage of our discounts up to Aug/15.  Here.


– If you are a student and submitted an abstract that has been approved, you may send your extended abstract up to Aug/08 and apply to compete for the Bernhard Gross Award. Here.


– Accommodation options? There are some here.

– 24 companies and institutions already chose to attend our meeting as exhibitors. If your organization also wishes to be a part of the event, contact us at rose@metallum.com.br.










We interviewed the French scientist Jean-Marie Dubois, specialist in quasicrystals (ordered, but aperiodic structures on solid materials) and pioneer in patenting applications for them. He told us a little about his main contributions to the field of Materials and gave a teaser on the theme of his plenary lecture in the XIII SBPMat Meeting: he will talk about quasicrystal structures, found in metallic alloys, polymers, oxides and artificial nanostructures, and their unprecedented properties. In the picture, Jean-Marie Dubois (on the left) and Dan Shechtman, who received a Nobel Prize in 2011 for the quasicrystals, using equal ties, both decorated with the Penrose tiling, an example of aperiodicity.  Read our interview with Jean-Marie Dubois here.








We also interviewed the Italian chemist Roberto Dovesi, one of the creators of CRYSTAL, a computational tool for ab initio quantum calculations used in the study of several solid materials properties. The CRYSTAL code is currently used in over 350 laboratories around the world.  In his plenary lecture in the XIII SBPMat Meeting, Dovesi will attempt to demonstrate that today quantum simulations may be very useful tools to complement experiments.  Read our interview with Roberto Dovesi here.












Featured paper with Brazilian participation






A group of scientists, coordinated by Brazilian researchers, used a Helium Ion Microscope (HIM) located in Silicon Valley, in the United States,  to engrave nanometric periodic patterns in graphene sheets, giving an innovative use to the instrument. The fast, simple and precise technique could be used by the electronics industry to produce graphene semiconductive devices, which could replace the silicon ones. The lead author of the paper published in Applied Physics Letters told us the story behind the study and announced that, soon, Brazil is going to have its first HIM.  Read the story.







Reading recommendations






Science stories based on papers published in journals with high impact factor.


– Ultralight material formed from polymeric, metallic and ceramic microstructures, produced by 3D printers (Science). Read it here.


– Friction at the nanoscale: while carbon nanotubes are superlubricants, boron nitride nanotubes display a high level of friction (Nature Materials). Read it here.


– New method for producing perovskite solar cells with good costs and efficiency (Nature Materials). Read it here.


– Scientists propose a model for fullerenols structure and are one step closer to biomedical applications (Chemical Science). Read it here.

Materials news from the Brazilian National Institutes of Science and Technology (INCTs).


– 3D chips may be quick and cheap. Read it here.

On the market, or almost there.


– Oral hygiene products incorporated with silver nanostructures: technology developed in Brazil prevents 99% of bacteria and fungi. More.


– For licensing: bionanocomposite for bone grafting tested in vitro and in vivo, developed in Brazil. More.


– For licensing: Cesium phosphate filter with functionalized nanotubes, very efficient for heavy metals. More.

Book review


– New book on eco-friendly polymer nanocomposites (types, processes and properties). Read it here. 


 







Upcoming events in the area






– 2º Workshop Adesão Microbiana e Superfícies. Here.


– 13th European Vacuum Conference + 7th European Topical Conference on Hard Coatings + 9th Iberian Vacuum Meeting. Here.


– 19th International Conference on Ion Beam Modification of Materials. Here.


– XIII SBPMat Meeting. Here.


– International Symposium on Crystallography – 100 years of History. Here.


– Congresso Brasileiro de Engenharia Biomédica (CBEB). Here.


– MM&FGM 2014 – 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials. Here.


– X Brazilian Symposium on Glass and Related Materials (X-BraSGlass). Here.











To suggest news, opportunities, events or reading recommendations items for inclusion in our newsletter, write to comunicacao@sbpmat.org.br.





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XIII SBPMat Meeting: record of submissions with over 2,100 abstracts.

				

			Posted on Monday 30 de June de 2014		

			


	

		
The XIII SBPMat Meeting, to be held in João Pessoa from September 28 to October 02nd has registered more than 2,100 submitted papers – a record in the history of the Society’s annual meetings.


Among the 19 symposia of the event this year, the ones which received more submissions, holding over 200, were the symposium N, dedicated to Surface Engineering; M, on nanomaterials for nanomedicine, and B, about ceramic and metallic materials obtained through chemical methods.


The term for submitting abstracts ended on June 13. Until July 15, the authors of the submitted papers will be notified about their approval, necessary modifications or rejection.


Bernhard Gross Award


Among the accepted papers, the ones submitted by undergraduate or graduate students may compete for the Bernard Gross Award. With this award, the committee of the XIII SBPMat Meeting will distinguish the best papers presented by students in each symposium (one poster and one oral presentation, at most). The winning papers may be published in a special issue of the open access journal “IOP Conference Series: Materials Science and Engineering” dedicated to the XIII SBPMat Meeting, with no cost for the authors. To take part in the contest, the authors, once they are notified of the approval, must send an extended abstract, in compliance with the instructions and the model offered at the site of the event.


About the event


The SBPMat annual meeting is a traditional, international forum, dedicated to recent advances and perspectives on Materials Science and Technology. In the last editions, the event has gathered approximately 1,500 attendees, from the five regions of Brazil and dozens of others countries, for presenting and discussing scientific and technological studies in the field of Materials.  The event also counts with plenary lectures, offered by internationally renowned researchers, and an exhibition of interest for the Materials community.


Schedule


    

  • Resubmission of papers after being notified about necessary changes: up to July 10.
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  • Notification of the accepted abstracts: up to July 15.
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  • Submission of extended abstracts for the Bernhard Gross award: from July 15 to August 08.
    • 



			


	


			
				


	

		
E-MRS Meeting in France: SBPMat organization and Brazilian presence at organic electronics symposium.

				

			Posted on Thursday 26 de June de 2014		

			


	

		
SBPMat was part of the organization of the E-MRS (European Materials Research Society) Spring Meeting, held from May 26th to 30th, in Lille, France. SBPMat’s President, Roberto Mendonça Faria, full professor at the Institute of Physics of the University of São Paulo (USP) was among the Conference Chairs, jointly with four European scientists.


In addition to that, SBPMat has supported one of the event’s 30 symposia, the DD “Functional materials and devices for organic electronics”, which was also assisted by the Brazilian National Institute of Science and Technology in Organic Electronics (INEO). The symposium displayed substantial Brazilian attendance. It was organized by SBPMat’s Financial Director, Professor Marco Cremona (Pontifical Catholic University of Rio de Janeiro, PUC-Rio), by SBPMat´s current Scientific Director Rodrigo Bianchi (Federal University of Ouro Preto, UFOP), and Carlos Graeff (São Paulo State University, UNESP), SBPMat´s former Scientific Director, as well as by a German and an Italian scientists.


“The symposium was a success, both regarding the researchers invited – all highly qualified and leaders in their field of expertise – as to the level of results presented in the technical sessions and the subjects approached, all current concerns in the field of organic electronics”, summarized Professor Cremona. “Not only that, but the symposium has contributed to improve the image of Brazil in this field, and to start new collaborations, while still strengthening the ones that already exist”, he adds.


Dedicated to the subject of organic electronics, the symposium comprised oral presentations, posters and 23 invited lectures in sessions on organic light-emitting devices, organic transistors, flexible devices, sensors, organic solar cells, bioelectronic devices, graphene and other transparent conductive films. Other sessions approached the relation between nanostructure and function in advanced organic devices, and the modeling, simulation, characterization methods and new horizons for materials and organic devices.  “The topics were well balanced among basic and applied researches in the field of organic electronics, including electronic devices and biosensors”, as Professor Bianchi comments.


During the four days of the symposium, over 140 studies were presented, by researchers from European Union member countries, Korea, Japan, Brazil, the United States, Russia, Australia, among others. “The presentations in the Symposium DD brought high-impact lectures to E-MRS, with great participation of Brazilian researchers, proving that the country and SBPMat have been working in fields with scientific impact, and in the knowledge frontier”, Bianchi adds. Indeed, Brazil contributed to the symposium with approximately 20 papers, and two invited lectures.


Award


The symposium also featured awards for the best three posters and two papers presented in oral form:


Oral presentations:


    

  • Jean Nicolas Tisserant, ETH Zürich, D-AGRL Food and Soft Materials (Zürich, Switzerland). “Growth and Alignment of Thin Film Organic Single Crystals from Dewetting Patterns”, Empa.
    • 

  • Daniele Sette, CEA, LETI, DCOS (Grenoble, France). “Influence of the Annealing Temperature on the Properties of Inkjet Printed Porous Silver Layers”.
    • 



Posters:


    

  • Anshuma Pathak, TU Munich, Molecular electronics (Munich, Germany),
    • 

  • “Structural and Electrical Study of Organophosphonate SAMs on AlOx/Al”.
    • 

  • Jung-Hung Chang, National Taiwan University, Graduate Institute of Photonics and Optoelectronics (Tapiei, Taiwan), “All–solution processed transparent organic light emitting diodes with graphene as top cathodes”.
    • 

  • Lidiya Leshanskaya, Institute for Problems of Chemical Physics, Kinetics and Catalysis, Academician Semenov (Moscow, Russia), “Origin of the advanced charge transport properties of indigo thin films: influence of the dielectric on the crystal structure of the semiconductor”.
    • 



 


			


	


			
				


	

		
SBPMat newsletter. English edition. Year 1, issue 5.

				

			Posted on Monday 2 de June de 2014		

			


	

		
 


















Brazilian Materials Research Society (SBPMat) newsletter




News update from Brazil for the Materials community


 







English edition. Year 1, issue 5.








Greetings, .








SBPMat’s news








XIII SBPMat meeting:


João Pessoa, September 28th, to October 2nd.


– The deadline for submitting papers for SBPMat’s symposia was extended to June 06th.  Submit yours.


– Hosting options in João Pessoa? See some of them here.









Interviews with plenary speakers






We have interviewed Professor Alberto Salleo, from Stanford University, who is going to give a plenary lecture on organic electronic devices in the XIII SBPMat Meeting. Young, yet holding a career that stands out internationally, Salleo told us about the work conducted by his group, which has been developing a deeper understanding on the role provided by the defects in charge transport in organic semiconductors. He also shared with us his main papers, published in Nature Materials. Finally, Salleo discussed the next challenges and applications on organic electronics, and anticipated what he is going to address in the plenary lecture, which promises to be very informative while mild enough for a wider audience. Read our interview with Alberto Salleo.







SBPMat’s community people








Upon his inauguration as a full member of the Brazilian Academy of Sciences (ABC), we talked to Professor Fernando Lázaro Freire Junior, SBPMat’s former president, financial director and scientific director. Throughout his scientific path, Professor Fernando Lázaro has been specially committed to researching carbon-based materials: DLC films, nanotubes and graphene. The researcher told us how he became a scientist, and commented on his most highlighted contributions to the field of Materials. Having a great portion of his career developed in the Pontifical Catholic University of Rio de Janeiro (PUC-Rio),  the Professor emphasized, in his message to younger readers: it is possible to do research with an international impact in Brazil. Read our interview with Fernando Lázaro Freire Junior. 









History of SBPMat






We talked again to Professor Fernando Lázaro Freire Junior, President of the society during two turns in a roll, from 2006 to 2009. During such time, SBPMat held, in addition to the 4 annual meetings, with an increasing number of attendees, the International Conference on Advanced Materials (ICAM 2009). It was also in those years that the society organized its office. Professor Fernando Lázaro presented a brief overview on his administration, regretted some pending issues (proximity with members and the interaction with the industry) and, to conclude, said that young people should be more involved in SBPMat’s decisions. Read it here.






Featured papers with Brazilian participation






– Our “featured paper” (release about a scientific paper made in Brazil) about ultra-small crystals with modulated shell thickness was posted at the webpage of Materials Today. Read it.


– “A new ozone sensor“, another SBPMat “featured paper”, is among the 10 most read in the month of April at the webpage of Materials Today. Read it.







Reading recommendations






Science journalism stories based on papers published in journals with high impact factor.


– Breakthroughs on molybdenum disulfide lead to new technique and advance the applications of this two-dimensional material (Science). Read it. 


– In a blender, scientists create graphene production route in large scale for composites and coatings (Nature Materials). Read it.


– Biomaterials: silk microstructures are produced with photolithography and guide cell adhesion (Advanced Materials). Read it.


– Biomimetics: new discoveries on the anatomy of the gecko inspired a high-performance adhering material, developed without nanotechnology (Advanced Materials). Read it.

Materials news from the Brazilian National Institutes of Science and Technology (INCTs).


– In order to monitor air pollution rates, project from university-industry partnership develops low-cost sensors, without batteries. Read it.

Another news.


– New Brazilian laboratory for the development of low-weight, high-resistance structures, components and parts. Read it.


– In the United Kingdom, £ 3 million project on nanoparticles for diagnosing and treating cardiovascular diseases. Read it. 







Opportunities






– Postdoctoral fellowship on micro-nanomaterials, monitoring and processing for industrial application in the Brazilian Federal University of Rio Grande do Sul. Here.


– Selection of the new director for the Brazilian Center for Research in Energy and Materials (CNPEM). Here.


– Call for collaborative projects São Paulo State – Finland on some Materials topics. Here.


– L´Oréal-Unesco-ABC Award “For women in Science” for research projects conducted by young female Doctors. Here.







Upcoming events in the area






– 13th International Conference on Modern Materials and Technologies (CIMTEC 2014). Here.


– 1st International Conference on Polyol Mediated Synthesis. Here.


– 2º Workshop Adesão Microbiana e Superfícies. Here.


– 13th European Vacuum Conference + 7th European Topical Conference on Hard Coatings + 9th Iberian Vacuum Meeting. Here.


– 19th International Conference on Ion Beam Modification of Materials. Here.


– XIII SBPMat Meeting. Here.


– MM&FGM 2014 – 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials. Here.


– X Brazilian Symposium on Glass and Related Materials (X-BraSGlass). Here.











To suggest news, opportunities, events or reading recommendations items for inclusion in our newsletter, write to comunicacao@sbpmat.org.br.





Unsubscribe here. 















			


	


			
				


	

		
Interviews with SBPMat’s former presidents: Fernando Lázaro Freire Junior (2006-2007 and 2008-2009).

				

			Posted on Wednesday 28 de May de 2014		

			


	

		
An active participant of the creation process of SBPMat and member of its founding board, Fernando Lázaro Freire Junior was elected the president of our society for two consecutive terms, chairing SBPMat’s board from 2006 to 2007, and from 2008 to 2009. During the whole time, Professor Fernando Lázaro counted with Professor Osvaldo Novais de Oliveira Júnior as managing director. The financial office was held by Glória Dulce de Almeira Soares in the first tenure, then by Sérgio de Souza Camargo Júnior in the second one. Aldo Felix Craievich and Paulo Fernando Papaleo Fichtner were the scientific directors for both terms, being joined in the latter by Antonio Eduardo Martinelli and Margareth Spangler Andrade.


It can be said that Professor Fernando Lázaro is a physicist from the Pontifical Catholic University of Rio de Janeiro (PUC-Rio), as it was there that he earned his Bachelor’s degree in Physics, in 1978, his Master’s in 1981 and Doctorate in 1985. In 1979, he started teaching in the same university and, in 2012, became a Full Professor. He was the Director of PUC-Rio’s Physics Department from 2003 to 2008. In Europhysics Letters (a journal from the European Physical Society), Professor Lázaro worked as coeditor between 2006 and 2010, and advisory editor from 2010 to 2013. In the Research Foundation of the State of Rio de Janeiro (FAPERJ), he was the coordinator of the Physics and Astronomy field, from 2008 to 2012, and currently is a member of the Higher Board.


Since 2011, Professor Fernando Lázaro is the director of the Brazilian Center for Research in Physics (CBPF). In December 2013 he was elected full member of the Brazilian Academy of Sciences (ABC). Author of over 170 scientific articles, with more than 2.500 citations, he is a Level 1A researcher in the Brazilian National Research Foundation, CNPq.


Which follows is an interview with this SBPMat’s former president on his two terms:


 1.  List the main actions performed during your terms as SBPMat’s president.


 In addition to organizing the annual meetings, which had an ever increasing audience in that time, we held the International Conference on Advanced Materials (ICAM) in Rio de Janeiro, structured the SBPMat office, as well as established the cooperation with the sister institutions MRS and E-MRS, the American and European Materials societies, but also with the International Union of Materials Research Society (IUMRS), when SBPMat attended the Second World Materials Summit on Advanced Materials in Energy Applications and Sustainable Society Development, in Lisbon. From a financial perspective, the coffer of the society had funds when we leave. By the way, such practice started in the administration of Professor Longo, leaving the presidency free of financial or labor problems for the next one, and it has still been followed in the administrations that succeed mine.


2. List the main difficulties faced during your terms as SBPMat’s president.


Initially, there was the lack of an administrative structure in the society, which, up to that point, depended entirely on the work of its directors and of the researchers organizing the annual meetings. I had more luck than the previous administration, and with the funds available, we could hire a secretary and interns to run the society. Later, we hired a second secretary and the management became more professional. Another issue was organizing the ICAM. An events agency was hired, but it could not deliver, which caused a great stress, due to the hardship to organize an international meeting with more than 1600 researchers.


3. What could have been done, but was still pending?


Take the Society closer to its members. This was very poorly attempted with SBPMAt’s electronic panel, which used to spread news of the interest of its associates. Nowadays, our newsletter is orders of magnitude better. Such process requires time; we can’t compare a society like ours, with little more than 10 years, to others, holding over 40, 50 years of existence. It was still lacking a major interaction with the productive sector, which is still far from occurring in a level that truly represents the importance held by the Materials research in several fields of our economy.


4. What would you highlight about the SBPMat meetings that were organized and held in your administration?


First, there was the increasing participation of students and researchers, proving that the SBPMat’s Annual Meeting came to fill a gap in the Brazilian scenario. In addition to that, there is the itinerant nature of the meeting. In those four years, we held meetings in Natal and Florianópolis, as well as Rio de Janeiro and Guarujá. As the meeting counts with the substantial attendance of foreign researchers, this aspect is important as it brings the possibility of gaining access to scientific events to new students in all regions of the country. Another important point is the good scientific level of the contributions which have been presented and the interdisciplinary nature of the symposia, making the SBPMat Annual Meeting the most important event in the field of Materials, in Brazil.


5. Would you like to leave a message to our readers, concerning the election process of our SBPMat?


The participation rate is still very low, and I think the effective involvement of its associates is crucial to strengthen SBPMat. The current board and its council represent an important renewal when compared to previous ones, and that is good, it is good for the younger people to take part in the society, its decisions and management.