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John Polanyi

Professor
University of Toronto, Canada
Abstract


CHEMISTRY AT THE NANO-LEVEL:
Watching Simple Molecules React at Surfaces, A-Molecule-At-A-Time

Scanning Tunneling Microscopy allows one to characterize the geometry of molecules at surfaces (their positioning, alignment and tilt) before and after they react. The motions of the atoms and radicals as they react can therefore be visualized in the form of movies, using a blend of quantum mechanics and classical mechanics to obtain the intermediate configurations. The atomic and molecular motions in reactions at semi- conductor and metal surfaces, obtained in this fashion, will be exemplified. Fortunately simple principles can be deduced governing the process of reaction, so that this visualization is more rewarding than would be the reconstruction of the script of Hamlet from its first and last acts. In fact, thanks to STM and the power of modern computing, our understanding of reaction dynamics at the nano-level is currently undergoing a renaissance.


  Biography


John Polanyi, educated at Manchester University, England, was a postdoctoral fellow at Princeton University and at the National Research Council of Canada. He is a faculty member in the Department of Chemistry at the University of Toronto, a member of the Queen’s Privy Council for Canada (P.C.), and a Companion of the Order of Canada (C.C.). His awards include the 1986 Nobel Prize in Chemistry. He has written extensively on science policy, the control of armaments, peacekeeping and human rights.





 
Charles Lieber

Professor Charles M. Lieber
Mark Hyman Professor of Chemistry
Department of Chemistry and Chemical Biology
Harvard University

Prof. Lieber is not able to travel to IEEE NANO due to unforeseen circumstances.
Abstract


Nanowires, Nanoscience and Emerging Nanotechnologies

Nanoscience offers the promise of driving revolutionary advances in many areas of science and technology, ranging from electronics and computing to biology and medicine, yet the realization of this promise depends critically on the rational development of unique nanoscale structures whose properties and/or function are controlled during materials synthesis. What is the status today, and what are the prospects for the future of nanoscience and nanotechnology? This presentation will address these questions from the speaker’s perspective drawing from his work and that of the field broadly defined. First, bottom-up versus top-down paradigms of nanoscience will be introduced, as well the key concept of platform materials needed to drive the bottom-up approach. Second, a brief historical perspective on the emergence of nanowires will be discussed. The ‘chemical’ synthesis of complex modulated nanowires will be highlighted as a central material in nanoscience for enabling the bottom-up paradigm. Third, selected examples illustrating the interplay between nanoscience and emerging or future technologies will be highlighted. The concept of assembling a nanocomputer, first introduced by Feynman in 1959, will be introduced, and then the advances made in the past 10+ years will be reviewed and compared to parallel advances in industry. The potential for novel low-power processors for applications from micro-robots to implanted controller in the human body will be discussed. Next, the world-wide issue of energy will be addressed through an examination of past, present, and future efforts in nano-enabled renewable energy production and energy storage. Particular emphasis will be placed on efforts to exploit novel nanostructures for photovoltaic devices and novel paradigms enabled by the bottom-up approach. Last, advances and opportunities at the interface between nanotechnology and the life sciences will be discussed. Applications of inorganic and organic nanostructures as labels for imaging and drug delivery will be examined first. Then development of nanoelectronic devices with the capability to blur the distinction between electronic circuitry and cells to create ‘cyborg’ tissues will be described as an example of using nanoscience to realize what was once simply science fiction.



  Biography


Charles M. Lieber is regarded as a leading chemist worldwide and recognized as a pioneer in the nanoscience and nanotechnology fields. He completed his doctoral studies at Stanford University and currently holds a joint appointment in the Department of Chemistry and Chemical Biology at Harvard University, as the Mark Hyman Professor of Chemistry, and the School of Engineering and Applied Sciences. Lieber is widely known for his contributions to the synthesis, understanding and assembly of nanoscale materials, as well as the founding of two nanotechnology companies: Nanosys and Vista Therapeutics.

Lieber's achievements have been recognized by a large number of awards, including the Feynman Prize for Nanotechnology (2002), World Technology award in Materials (2003 and 2004) and the Wolf Prize in Chemistry (2012). He has published more than 350 papers in peer-reviewed journals and is the primary inventor on over 35 patents.





   
Arthur Carty

Professor & Executive Director
University of Waterloo, Canada

Abstract


Since the Japanese scientist Norio Taniguchi first used the term nano-technology at a conference in 1974, there have been many major developments in this interdisciplinary field including the award of Nobel Prizes for the discovery of fullerenes in 1985, the invention of the scanning tunneling microscope in 1986, and for work on graphene in 2010. Nanotechnology is now a rapidly expanding, enabling technology which is having a growing impact on most industrial sectors and elements of our society. This explosion in interest is generating new fields of research, novel advanced technologies and a need for sophisticated tools and infrastructure as well as skilled professionals with cross-disciplinary training. Some of the opportunities and challenges in creating an environment to address these needs will be described.

The Quantum-Nano Centre (QNC) at UW is the home of the Waterloo Institute for Nanotechnology (WIN), a rapidly growing centre of excellence for nanotechnology and its applications. QNC houses 76 principal investigators, 200 graduate students and post-docs, and state of the art facilities for leading edge research in nanoscience and technology. UW’s outstanding Nano-Engineering Co-op Program for undergraduate education, with 500 students enrolled is the largest of its kind in North America and is also based in QNC. This is a unique meeting place where researchers, undergraduate, and graduate students can meet, mingle, and be stimulated by an environment conducive to interdisciplinary exchange, breakthrough research, entrepreneurship, and innovation.



  Biography


Arthur Carty has a PhD in inorganic chemistry from the University of Nottingham in the UK. He is currently the Executive Director of the Waterloo Institute for Nanotechnology and research professor in the Department of Chemistry at the University of Waterloo.

Previously, Dr. Carty served in Canada as the National Science Advisor to the Prime Minister and President of the National Research Council (Canada). He was awarded the Order of Canada and holds 14 honorary doctorates.

His research interests are focused on organometallic chemistry and new materials.






 



Stephen Y. Chou

NanoStructure Laboratory,
Princeton University, Princeton, USA
Abstract


Large-Area Nanoimprinting and Applications, Particularly Energy Harvesting & Biosensing

This talk focuses on nanoimprinting, a revolutionary approach to nanofabrication that not only makes new kinds of devices conceivable, but also makes it possible to manufacture them economically[1]. Key technologies will be explained and illustrated, particularly in connection with nanodevices for energy harvesting and biosensing. A central example is a new solar cell structure (developed by us) that nearly doubles power conversion efficiency and could be manufactured cost-effectively in wallpaper-sized sheets. New high efficiency and high performance LEDs and displays as well as ultra-sensitive biosensors (also developed by us) will be presented.

[1] S. Y. Chou, P. R. Krauss, and P. J. Renstrom, Appl. Phys. Lett, 67 (21), 3114 (1995); and S.Y. Chou, US. Patent No. 5,772,905.



  Biography


Stephen Y. Chou, Joseph C. Elgin Professor of Engineering, head of NanoStructure Laboratory at Princeton University, PhD from MIT (1986), a member of US National Academy of Engineering, and a recipient of other 30 awards. Dr. Chou is recognized as a world leader, pioneer and inventor in a broad range of nanotechnologies. His work and inventions over 30 years have shaped new paths and opened up new fields in nanofabrication, nanoscale devices and materials (electrical, optical, magnetic, biological), and have significantly impacted both academia and industry.

Dr. Chou’s most well-known invention is nanoimprint (a paradigm-shift method for nanofabrication, which has become a large industry and a key corner-stone in today’s nanomanufacturing in many industries). His other inventions include patterned medium (a new paradigm for data storage), new nanotransistors/memories, new subwavelength optical elements, ultra-sensitive nanobiosensors and nanoplasmonic LEDs and solar cells.








William Milne

Professor
University of Cambridge, UK
Abstract


Carbon Nanotubes and Graphene For Field Emission Applications

Since the initial work of Spindt and co-workers in the 1960s various planar and nanostructures have been used to produce efficient field electron emitters for a multitude of applications. Field Emission (FE) is the quantum mechanical emission of electrons from an electron-rich phase under an intense electric field. Typically, Si and refractory metals, such as W and Mo, have been used to produce such emitters and tips to enhance emission have been made by anisotropic etching or deposition. However, Carbon Nanotubes (CNTs) have a key advantage over such materials. They possess an intrinsically high aspect ratio ‘whisker-like’ shape which provides the optimum geometrical shape for field enhancement. Although not as immediately obvious, in this sense, graphene too offers such exceptionally high-aspect ratios due to its single-atom thickness and has also been suggested for field emission applications. Both Graphene and CNTs have the added advantage that their strong, covalent bonding means they are physically inert to sputtering, chemically inert to poisoning, and can potentially carry high current densities without electro-migration.

This talk will review the work we have carried out over the past several years on the possible field emission applications of both materials. It will begin by a description of the growth of Carbon Nanotubes and their optimization for Field Emission Applications. I will then describe the attempts that we have made to incorporate such structures in practical systems including work on electron microscope sources, microwave sources, parallel e-beam lithography systems and most recently x-ray systems. The talk will conclude with a discussion of a novel gate structure utilising graphene for use in triode field emission devices.



Biography


Bill Milne FREng,FIET,FIMMM has been Head of Electrical Engineering at Cambridge University since 1999 and Director of the Centre for Advanced Photonics and Electronics (CAPE) since 2005. In 1996 he was appointed to the ‘‘1944 Chair in Electrical Engineering’’. He obtained his BSc from St Andrews University in Scotland in 1970 and then went on to read for a PhD in Electronic Materials at Imperial College London. He was awarded his PhD and DIC in 1973 and, in 2003, a D.Eng (Honoris Causa) from University of Waterloo, Canada. He was elected a Fellow of The Royal Academy of Engineering in 2006. He was awarded the J.J. Thomson medal from the IET in 2008 and the NANOSMAT prize in 2010 for excellence in nanotechnology. His research interests include large area Si and carbon based electronics, graphene, carbon nanotubes and thin film materials. Most recently he has been investigating MEMS, SAW and FBAR devices and SOI based micro heaters for ( bio) sensing applications. He has published/presented ~ 800 papers in these areas, of which ~ 150 were invited. He co-founded Cambridge Nanoinstruments with 3 colleagues from the Department and this was bought out by Aixtron in 2008 and in 2009 co-founded Cambridge CMOS Sensors with Julian Gardner from Warwick Univ. and Florin Udrea from Cambridge Univ.






  Shuit-Tong Lee

Institute of Functional Nano & Soft Materials (FUNSOM)
Collaboration Innovation Center of Suzhou Nano Science and Technology
College of Nano Science and Technology (CNST)
Soochow University, China
Email: apannale@suda.edu.cn
Abstract


After a brief introduction of the nano materials and technology programs in Soochow University, I shall discuss our research activities in Si nanostructures. In recent years, we have developed various methods, such as vapor-liquid-solid (metal- or oxide-assisted growth, electrochemical etching, among others) for the rational synthesis of Si nanomaterials in various forms. Si nanostructures (nanowires, quantum dots) exhibit unique and remarkable structural, optical, electronic and chemical properties, which are exploited for myriad applications. Energy devices based on Si nanowire arrays can achieve efficiencies as high as 12% for solar energy conversion. Additionally, Si nanodots and nanowires can facilitate efficient photo-catalytic redox reactions of organics. I shall focus on our recent developments of Si nanostructures for environmental-green, high-efficiency, and low-cost solar energy conversion and catalysis applications.


  Biography


Prof. Lee is the member (academician) of Chinese Academy of Sciences and the fellow of TWAS (the academy of sciences for the developing world). He is a distinguished scientist in material science and engineering. Prof. Lee is the Founding Director of Functional Nano & Soft Materials Laboratory (FUNSOM) and Director of the College of Chemistry, Chemical Engineering and Materials Science at Soochow University. He is also a Chair Professor of Materials Science and Founding Director of the Center of Super-Diamond and Advanced Films (COSDAF) at City University of Hong Kong and the Founding Director of Nano-Organic Photoelectronic Laboratory at the Technical Institute of Physics and Chemistry, CAS. He was the Senior Research Scientist and Project Manager at the Research Laboratories of Eastman Kodak Company in the US before he joined City University of Hong Kong in 1994. He won the Humboldt Senior Research Award (Germany) in 2001 and a Croucher Senior Research Fellowship from the Croucher Foundation (HK) in 2002 for the studies of “Nucleation and growth of diamond and new carbon based materials” and “Oxide assisted growth and applications of semiconducting nanowires”, respectively. He also won the National Natural Science Award of PRC (second class) in 2003 and 2005 for the above research achievements. Recently, he was awarded the 2008 Prize for Scientific and Technological Progress of Ho Leung Ho Lee Foundation. Prof. Lee’s research work has resulted in more than 650 peer-reviewed publications in prestigious chemistry, physics and materials science journals, 6 book chapters and over 20 US patents, among them 5 papers were published in Science and Nature (London) and some others were selected as cover papers. His papers have more than 10,000 citations by others, which is ranked within world top 25 in the materials science field according to ESI and ISI citation database.






Seiji Samukawa

Distinguished Professor
Innovative Energy Research Center, Institute of Fluid Science, Tohoku University
World Premier International Center Initiative, Advanced Institute for Materials Research, Tohoku University, Sendai, Japan
Abstract


Neutral Beam Technology – Defect-free Nanofabrication of Novel Nanomaterials and Nanodevices

For the past 30 years, plasma process technology has been a key part of the efforts to shrink the pattern size of ultra-large-scale integrated (ULSI) devices. However, inherent problems in the plasma processes, such as charge buildup and UV photon radiation, limit the process (etching, deposition, surface modification) performance for nanoscale devices. To overcome these problems and fabricate sub-10-nm devices in practice, neutral beam technology has been proposed.

In this paper, I introduce the ultimate nanofabrication processes using neutral beam sources and discuss the fusion of top-down and bottom-up processing for future nanoscale devices. To achieve charge-free and UV photon irradiation damage-free processes, we have developed a new neutral beam generation system based on my discovery that neutral beams can be efficiently generated from the acceleration of negative ions produced in pulsed plasmas. Using neutral beam processing, we successfully demonstrated sub-50-nm damage-free gate electrode etching, damage-free Si channel etching for 45-nm finFETs, ultra-thin gate dielectric film formation for 32-nm finFETs, damage-free low dielectric film deposition for 22-nm FETs, and low-damage surface modification of carbon materials (including nanotubes, graphenes, and organic molecules) for future sub-10 nm nanodevices. More recently, we have investigated processing technologies based on a combination of biotechnology and neutral-beam-based nanoprocesses, i.e., bio-nanoprocesses, for future nanoelectronic devices and successfully achieved the fabrication of sub-10-nm-diameter and high density Si, Ge, GaAs, InGaAs, and graphene nanodisk (nanodot) array structures. The quantum effects of these nanoscaled structures were shown to manifest themselves at room temperature due to the damage- free surfaces made possible by the neutral beam processes. Now, by using these nanodisk structures, we are actively developing “novel quantum effect devices”, such as a quantum dot solar cell for a high energy conversion efficiency of more than 45% and a quantum dot optical devices.

We are actively developing ultra-low-damage nanofabrication techniques using neutral beam technology that taps into the essential nature of nanomaterials and nanostructures and are actively developing innovative nanodevices.




Biography


Dr. Seiji Samukawa received a BSc in 1981 from the Faculty of Technology of Keio University and joined NEC Corporation the same year. At NEC Microelectronics Research Laboratories, he was the lead researcher of a group performing fundamental research on advanced plasma etching processes for technology under 0.1 μm. While there, he received the Ishiguro Award—given by NEC’s R&D Group and Semiconductor Business Group— for his work in applying a damage-free plasma etching process to a mass-production line. After spending several years in the business world, however, he returned to Keio University, obtaining a PhD in engineering in 1992. Since 2000, he has served as professor at the Institute of Fluid Science at Tohoku University and developed ultra-low-damage microfabrication techniques that tap into the essential nature of nanomaterials and developed innovative nanodevices. He is also carrying out pioneering, creative research on bio-template technologies, which are based on a completely new concept of treating the super-molecules of living organisms. His motto when conducting research is to “always aim toward eventual practical realization.”

In recognition of his excellent achievements outlined above, he has been elected as a Distinguished Professor of Tohoku University and has been a Fellow of the Japan Society of Applied Physics since 2008 and a Fellow of the American Vacuum Society since 2009. His significant scientific achievements earned him the Outstanding Paper Award at the International Conference on Micro and Nanotechnology (1997), Best Review Paper Award (2001), Japanese Journal of Applied Physics (JJAP) Editorial Contribution Award (2003), Plasma Electronics Award (2004), Fellow Award (2008), JJAP Paper Award (2008) from the Japan Society of Applied Physics, Distinguished Graduate Award (2005) from Keio University, Ichimura Award (2008) from the New Technology Development Foundation, Commendation for Science and Technology from the Minister of Education, Culture, Sports, Science and Technology (2009), Fellow Award of American Vacuum Society (2009), Plasma Electronics Award from the Japan Society of Applied Physics (2010), Best Paper Award from the Japan Society of Applied Physics (2010), and Plasma Prize from the Plasma Science and Technology Division of American Vacuum Society (2010).










Sergej Fatikow


Full Professor, Dr.-Ing. habil.
Head, Division for Microrobotics & Control Engineering (AMiR)
University of Oldenburg, Germany
Abstract


Industrial Robotics and Automation for Applications at Nanoscale

Current research activities in AMiR include, amongst others, the development of new nano- handling robots; the investigation of novel automated nanohandling strategies; the develop- ment of advanced control methods; as well as the investigation of suitable real-time sensing technologies at nanoscale. In his talk, Prof. Fatikow introduces the new reasearch field of industrial robotics and automation for applications at nanoscale. He specially addresses his current work on an automated nanohandling robot cell inside a scanning electron microscope (SEM). The latter serves as a powerful vision sensor and the work space for nanohandling robots integrated into the vacuum chamber and equipped with application-specific tools. Major research issues of this work regarding the implementation of the main system components – the piezo-driven nanohandling robots, the robot control system, the sensor feedback – are discussed. Finally, current research projects and applications being pursued in AMiR are outlined. They include automated nanoassembly of AFM supertips inside SEM, handling and characterization of carbon nanotubes and graphene flakes, automated fabrication and exchange of nanorobot tools, automation issues in AFM-based nanohandling, and others.




Biography


Professor Sergej Fatikow studied electrical engineering and computer science at the Ufa Aviation Technical University in Russia, where he received his doctoral degree in 1988 with work on fuzzy control of complex non-linear systems. After that he worked until 1990 as a lecturer at the same university. During his work in Russia he published over 30 papers and successfully applied for over 50 patents in intelligent control and mechatronics. In 1990 he moved to the Institute for Process Control and Robotics at the University of Karlsruhe in Germany, where he worked as a postdoctoral scientific researcher and since 1994 as Head of the research group “Microrobotics and Micromechatronics”. He became an assistant professor in 1996 and qualified for a full faculty position by habilitation at the University of Karlsruhe in 1999. In 2000 he accepted a faculty position at the University of Kassel, Germany. A year later, he was invited to establish a new Division for Microrobotics and Control Engineering (AMiR) at the University of Oldenburg, Germany. Since 2001 he is a full professor in the Department of Computing Science and Head of AMiR. His research interests include micro- and nanorobotics, automated robot-based nanohandling in SEM, AFM-based nanohandling, sensor feedback at nanoscale, and neuro-fuzzy robot control. He is author of three books on microsystem technology, microrobotics and microassembly, robot-based nanohandling, and automation at nanoscale, published by Springer in 1997, Teubner in 2000, and Springer in 2008. Since 1990 he published over 100 book chapters and journal papers and over 200 conference papers. Prof. Fatikow is Founding Chair of the International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) and Europe- Chair of IEEE-RAS Technical Committee on Micro/Nano Robotics and Automation.




 
Kevin P. Chen

Department of Electrical and Computer Engineering
University of Pittsburgh
Abstract


Holographic Printing of Three-Dimensional Photonics Structures: A VLSI Approach

In the last two decades, technological advance in nanotechnology has fundamentally changed landscapes in photonics. Engineering nanostructures in three dimensions at the length scale that is a fraction of a wavelength of characteristic optical waves has yielded some amazing engineering possibilities in communication, renewable energy, and sensing. While many technologically interesting 3D nano-optic structures have been identified by scientists and engineers, the scalable fabrication of these 3D nanostructures still remain as one of the greatest challenges for the modern manufacturing industry.

In this talk, we discuss the laser holographic lithography as a promising 3D nanofabrication technique. We present concerted research efforts since 2004 to develop scalable laser holographic lithography techniques that are simpler, more robust, and VLSI compatible. These research efforts have led to the development of holographic lithography techniques using one optical element and one laser exposure. Using adaptive optics technology, we will discuss the solutions to improve the reconfigurability and functionality of the laser lithography processes as powerful and flexible tools for scalable 3D nano-manufacturing.


  Biography


Dr. Kevin P. Chen received his Ph.D. in Electrical Engineering at the University of Toronto, he joined the University of Pittsburgh as a faculty member after his Ph.D. training in 2002. He is currently the Paul E. Lego Associate Professor in Electrical Engineering. Dr. Chen is a recipient of National Science Foundation CAREER Award. His research group engages in interdisciplinary research in laser manufacturing, fiber optics, and nanotechnology.





   

Mona Jarrahi

Associate Professor of Electrical Engineering,
University of California, Los Angeles

Abstract


Nanophotonics and Plasmonics for Advancement of Terahertz Technology

Although unique potentials of terahertz waves for chemical identification, material characterization, biological sensing, and medical imaging have been recognized for quite a while, the relatively poor performance, higher costs, and bulky nature of current terahertz systems continue to impede their deployment in field settings. In this talk, I will describe some of the recent significant advancements in terahertz technology enabled by nanotechnology. In this regard, I will introduce fundamentally new terahertz optoelectronic components and imaging/spectrometry/spectroscopy systems that offer significantly higher performance compared to the state of the art. In specific, I will introduce new designs of high-performance terahertz sources and detectors that utilize plasmonic nanostructures to enhance terahertz radiation power by three orders of magnitude – at record-high power levels of several milliwatts – and terahertz detection sensitivity by two orders of magnitude. To achieve this significant performance improvement, plasmonic nanostructures and device architectures are optimized for operation at telecommunication wavelengths, where very high power, narrow linewidth, wavelength tunable, compact and cost-effective optical sources are commercially available. Therefore, these results pave the way to compact and low-cost terahertz sources, detectors, and spectrometers that could offer numerous opportunities for e.g., medical imaging and diagnostics, atmospheric sensing, pharmaceutical quality control, and security screening systems.



  Biography


Mona Jarrahi received her Ph.D degree in Electrical Engineering from Stanford University in 2007 and served as a Postdoctoral Scholar at University of California Berkeley from 2007 to 2008. After serving as an Assistant Professor in University of Michigan Ann Arbor, she joined UCLA in 2013 as an Associate Professor of Electrical Engineering and the Director of the Terahertz Electronics Laboratory. Prof. Jarrahi has made significant contributions to the development of ultrafast electronic/optoelectronic devices and integrated systems for terahertz/millimeter- wave sensing, imaging, computing, and communication systems by utilizing novel materials, nanostructures, and quantum well structures as well as innovative plasmonic and optical concepts. In recognition of her outstanding achievements, Prof. Jarrahi has received several prestigious awards in her career including the Presidential Early Career Award for Scientists and Engineers (PECASE); Early Career Award in Nanotechnology from the IEEE Nanotechnology Council; Outstanding Young Engineer Award from the IEEE Microwave Theory and Techniques Society; Grainger Foundation Frontiers of Engineering Award from National Academy of Engineering; Young Investigator Awards from the Army Research Office (ARO), the Office of Naval Research (ONR), and the Defense Advanced Research Projects Agency (DARPA); Early Career Award from the National Science Foundation (NSF); the Elizabeth C. Crosby Research Award from the University of Michigan; and best-paper awards at the International Microwave Symposium and International Symposium on Antennas and Propagation. Prof. Jarrahi is a member of the editorial board of Journal of Infrared, Millimeter and Terahertz Waves and a member of the program committee of the International Conference on Infrared, Millimeter, and Terahertz Waves, IEEE International Microwave Symposium, International Workshop on Optical Terahertz Science and Technology, IEEE International Symposium on Antennas and Propagation, SPIE Photonics West Conference, and SPIE Optics + Photonics Conference. She also serves as a panelist and reviewer for National Science Foundation and Department of Energy and a member of the Terahertz Technology and Applications Committee of IEEE Microwave Theory and Techniques Society. Prof. Jarrahi is a senior member of IEEE and SPIE and a member of OSA.





 


Quan Wang

Professor
Canada Research Chair
Department of Mechanical Engineering
University of Manitoba, Canada
Abstract


Applications of nanoresonators in nano-sensors and molecular transportation

Recently, interests have been orientated toward the development of nano-electromechanical systems such as nano-mechanical resonators. The ultra-high-frequency of nanoresonators facilitates a wide range of new applications such as ultra-high sensitive sensors, molecular transportation, high-frequency signal processing, biological imaging, quantum measurement and radio frequency communications. In this presentation, studies from the research group on applications of nanoresonators nano-sensors and molecular transportation are introduced and reviewed. First, studies on nanoresonator sensors made of carbon nanotubes and graphene sheets for detection of atoms/molecules based on vibration and wave propagation analyses are introduced. The principle of nano-resonator sensors is to detect shifts in resonant frequencies or the wave velocities in the nano-sensors caused by surrounding foreign atoms or molecules. The sensitivity of the sensors and their applicability in differentiation of distinct types of atoms/molecules are particularly discussed. Second, the feasibility of molecular transportation using propagation of torsional and impulse waves in nano-resonator devices is presented. The transportation methods are then extended for building nanofiltering systems with ultra-high selectivity. The presentation aims to provide a state-of-the-art introduction of the potential of resonators made of carbon nanotubes and graphene sheets, and inspire further applications of the nano-resonators.



  Biography


Dr. Wang is a professor and a Canada Research Chair professor at the University of Manitoba. His research areas are in the general field of smart materials and nanotechnology. He has published more than 170 internationally refereed journal papers with more than 4600 citations. He is now an associate editor and editorial board member for renowned journals such as Smart Materials and Structures (IOP), Carbon (American Carbon Society), an ASME Journal, and Journal of Sound and Vibration (Elsevier). He is a fellow of American Society of Mechanical Engineers (ASME), American Society of Civil Engineers (ASCE), and Institute of Physics (IOP). His research findings have been highlighted by Chemical Sciences and ACS Nano. He has also played various active roles in, and contributed to, the nanotechnology and smart materials research and education. The co-author, Dr. Behrouz Arash, got his PhD in mechanical engineering from the University of Manitoba in Canada. He is currently is post-doctoral research fellow in the Department of Mechanical Engineering at the University of Manitoba. His research findings are in areas of nano-mechanics, nanocomposites, computational mechanics and molecular simulations.





 



Haixia (Alice) Zhang

Professor
Institute of Microelectronics
Peking University, China
Abstract


High Performance Triboelectric Nanogenerator for Self- Powering Smart System

As is well known, energy crisis are becoming a worldwide problem and researchers are making every effort to search for the green and renewable energy source. To solve the problem, self-powered system has been proposed, which focuses on harvesting energy from the ambient environment. In 2012, utilizing the friction to generate energy based on the combination of triboelectric and electrostatic effect is presented as triboelectric nanogenerators (TENGs) which can be applied to biomedical and environmental systems as a power supply or a self-powered active sensor. In this talk, speaker will talk about their research work in TENGs. First, a Sandwich TENGs with energy volume density achieved 465 V, 13.4 µA/cm2 , and 53.4 mW/cm3, which can drive an implantable 3-D microelectrode array for neural prosthesis without any energy storage unit or rectification circuit. Second, the r-shape hybrid piezoelectric NG and TENG is integrated into a keyboard to harvest energy in the typing process. Third, a single-friction-surface triboelectric generator (STEG) is transparent and flexible, which is applied for powering smart systems, such as touch panels, cell phone, artificial skins, sensor network nodes and so on.



  Biography


Haixia(Alice) Zhang, Professor, Institute of Microelectronics, Peking Universituy. She was served on the general chair of IEEE NEMS 2013 Conference, the organizing chair of Transducers’11. As the founder of the International Contest of Applications in Network of things (iCAN), she organized this world-wide event since 2007. She was elected the director of Integrated Micro/Nano System Engineering Center in 2006, the deputy secretary-general of Chinese Society of Micro-Nano Technology in 2005, the Co-chair of Chinese International NEMS Network (CINN) and serves as the chair of IEEE NTC Beijing Chapter. At 2006, Dr. Zhang won National Invention Award of Science & Technology. Her research fields include MEMS Design and Fabrication Technology, SiC MEMS and Micro Energy Technology.

Alice’s Wonderlab: http://www.ime.pku.edu.cn/alice












Stella W. Pang


Chair Professor, Electronic Engineering
City University of Hong Kong
Abstract


Platforms with Micro- and Nano-Structures to Control Cell Migration and Cell Detection

The migration of adherent cells has been demonstrated to be influenced by surface topography of substrates. However, the knowledge on cell migration directionality is limited. We have developed patterns that can affect the direction of cell migration. Polydimethylsiloxane (PDMS) patterns consisting of dots, gratings, and semicircles were fabricated in Si and transferred onto PDMS substrates. The results indicate that cell migration directionality can be controlled by the designed patterns. This study describes the first engineered cell culture surface that consistently induces changes in the directional persistence of adherent cells. In addition, results on using localized surface plasmon resonance (LSPR) effect to distinguish cell concentration on ordered arrays of Au nanoparticles (NPs) will be shown. Human-derived retinal pigment epithelial RPE-1 cells with flatter bodies and higher confluency were compared with breast cancer MCF-7 cells. Nanosphere lithography was used to form Au nanoparticles for cell detection. Optimal cell sensing can be achieved by altering the dimensions of Au NPs according to different cell characteristics and concentrations.




Biography


Stella W. Pang joined the City University of Hong Kong as Chair Professor in the department of Electronic Engineering in 2012. She is the director of Center for Biosystems, Neuroscience, and Nanotechnology. Previously, she was Professor of Electrical Engineering and Computer Science at the University of Michiganfrom 1990 to 2011. She served as the Associate Dean for Graduate Education and International Programs in the College of Engineering from 2002 to 2007. From 1981 to 1989, she was with Lincoln Laboratory, Massachusetts Institute of Technology. She received her Sc.B. degree from Brown University, and M.Sc. and Ph.D. degrees from Princeton University.

Dr. Pang's research interests include nanofabrication technology for microelectromechanical, biomedical, microelectronic, and optical devices. She has over 400 technical papers, book chapters, and invited presentations and is the editor and author of 16 books, journals and conference proceedings. Dr. Pang has 9 patents granted in nanotechnology and microsystems. She has taught 32 short courses on microfabrication and nanoimprint technology for microelectronic manufacturing and microelectromechanical systems. She is a Fellow of IEEE, ECS, and AVS.