Day 2 :
Keynote: Building and Engineering Highly Organized Single-walled Carbon Nanotube Network Architectures for Various Sensor Applications
Time : 09:30-10:15
Dr. Yung Joon Jung is Professor at Northeastern University, Department of Mechanical and Industrial Engineering and co-faculty director at Kostas Advanced Nano Characterization Center at Kostas Research Institute, Northeastern University. He received Ph.D. in Materials Engineering from Rensselaer Polytechnic Institute, 2003. He worked as a Postdoctoral Fellow at Rensselaer, and joined Northeastern University at 2005. Prof. Jung’s research focuses on investigating new synthetic routes for low dimensional nanomaterials and engineering their molecular structures. He also develops nanomanufacturing processes such as assembly and integration of nanomaterials and nanostructured architectures for nanoelectronics, flexible devices, various sensors and energy storage applications supported by National Science Foundation, Department of Defense, US Army, Ministry of Industry in Republic of Korea and other industries. He published over 65 articles in journals and three book chapters. He is also a co-founder of Guradion Technologies that develop networkable high performance ion and radiation sensors.
Over the past two decades, researches on low-dimensional carbon nanostructured materials (SWCNT and graphene) designed for a variety of sensor applications have made remarkable progress. However scalable fabrication and engineering of high performance sensors that harness 2-3 dimensional nano/micro architectures of these nanomaterials have remained largely elusive. Such methodologies will allow unprecedented device architectures fully utilizing superior physical and chemical properties of these nanomaterials for high performance and low SWaP sensors. Here we present some of our progresses in assembly and engineering of singlewalled nanotube networks and building 2-3D architectures for broad ranges of high performance chemical, optical and ion sensors by combining state-of-the-art assembly and transfer based nanomanufacturing strategies developed in our laboratory.
University of Paris-Saclay, France
Keynote: Revisiting SWIR photo-detectors: improvements on both light-matter interaction and electron transport
Time : 10:15-11:00
Jean-Luc Pelouard has completed his PhD from Paris-Sud University at Orsay France, and postdoctoral studies from NCSU at Raleigh, NC USA. Since 2000 he is “Directeur de Recherche” at the Centre National de la Recherche Scientifique (CNRS). He is currently co-managing the Common Research Laboratory MiNaO between CNRS and ONERA that is devoted to both fundamental and applied studies on infrared properties of sub-wavelength nanostructures (more details on minao.fr). He has published more than 150 papers in reputed journals. He holds 15 international patents and has supervised 22 PhD theses
Gwangju Institute of Science and Technology (GIST), Republic of Korea
Time : 11:15-12:00
Dr. Moon-Ho Ham is an associate professor in the department of Materials Science and Engineering at Gwangju Institute of Science and Technology (GIST), South Korea. Professor Ham received his B.S. and Ph.D. degrees in Materials Science and Engineering at Yonsei University, South Korea. He was a postdoctoral associate in Chemical Engineering at Massachusetts Institute of Technology. His research focuses on nanomaterials including nanocarbon and 2D materials for nanoelectronic and energy applications.
Two-dimensional (2D) materials such as graphene and transition metal dichacogenides (TMDCs) have unique physical and electrical properties. There is currently interest in taking advantage of these properties for future electronic applications. In this talk, I first introduce a modified chemical vapor deposition (CVD) technique for the production of large-area, high-quality continuous monolayer graphene films from benzene on Cu at 100–300 °C at ambient pressure. In this method, we extended the graphene growth step in the absence of residual oxidizing species by introducing pumping and purging cycles prior to growth. Further, Cu/graphene stacked interconnects are fabricated by directly synthesizing graphene onto Cu interconnects using this method, which show the improved electrical properties compared to Cu interconnects. In the second part, I present a simple and facile route to reversible and controllable modulation of the electrical and optical properties of WS2 and MoS2 via hydrazine doping and sulfur annealing. Hydrazine treatment of TMDSs improves the field-effect mobilities and photoresponsivities of the devices. These changes are fully recovered via sulfur annealing. This may enable the fabrication of 2D electronic and optoelectronic devices with improved performance.