Dr. E. H. Yang is a full professor of Mechanical Engineering Department at Stevens Institute of Technology. He worked as a Senior Member of the Engineering Staff at NASA's Jet Propulsion Laboratory (JPL). In recognition of his excellence in advancing the use of MEMS-based actuators for NASA's space applications, he received the prestigious Lew Allen Award for Excellence at JPL in 2003. He joined Stevens Institute of Technology in the Department of Mechanical Engineering in 2006. Currently, his group's research covers the growth and nanofabrication of graphene, carbon nanotubes and 2D materials, as well as the implementation of tunable wetting and surface interaction. Dr. Yang’s service to the professional community includes formal appointments such as Editorial Board Member of Nature’s Scientific Reports and Elsevier NANOSO, and Associate Editor of IEEE Sensors and ASME JEECS. Dr. Yang has published hundreds of papers and provided keynotes, presentations, and seminars at various academic and industrial events. He is a Fellow of National Academy of Inventors. He is a Fellow of American Society of Mechanical Engineers.
I will present two of our primary research topics, as each relates to 1D/2D materials, substrates and surfaces. First, I will focus on our investigation of chemical vapor deposition (CVD)-growth of transition metal dichalcogenides (TMDs) as well as their heterostructures, and characterization to illuminate the role of dissimilar 2D substrates in the prevention of interior defects in TMDs. We further demonstrate the epitaxial growth of TMDs on hBN and graphene, as well as vertical/lateral heterostructures of TMDs, uniquely forming in-phase 2D heterostructures. This research provides a detailed observation of the oxidation and anti-oxidation behaviors of TMDs, which corroborate the role of underlying 2D layers in the prevention of interior defects in TMDs. If the technique could be developed to be highly reliable and high fidelity, it could have a large impact on the future research and commercialization of TMD-based devices. The second research area concerns our development and application of flexible electrodes and energy storage toward wearable and multifunctional electronics. Here, we develop a facile fabrication technique utilizing vertically aligned carbon nanotubes (VACNTs), which enables high-throughput fabrication of flexible electrodes. For example, our structure shows a high flexibility and stability during stretching up to 20% and bending up to 180 degrees, promising for various flexible electronics applications.
Dr. Dennis W. Smith, Jr. received his B.S. (1988) from Missouri State University and his Ph.D. (1992) from the University of Florida under the guidance of Prof. Ken Wagener on the scope and mechanism of acyclic diene metathesis (ADMET) polymerization. He was a Rhone Poulenc Graduate Research Fellow in Lyon, France pursuing novel silicone elastomers, and a Dow Chemical Postdoctoral Fellow (1993) with Dr. Raymond König in Rheinmünster, Germany exploring fundamental aspects of epoxy networks. Dr. Smith joined The Dow Chemical Company Central Research Laboratory as Sr. Research Chemist (1993) and later was promoted to Project Leader (1996) working primarily on the synthesis and characterization of high-performance thermosets for thin film microelectronics applications. Dr. Smith was an original member of the team that invented and implemented SiLK™ Semiconductor Dielectric resins, which led to commercial production (see: Chem. & Eng. News, November 20, 2000, p. 17). He served as National Chemistry Week (NCW) Coordinator (1996) and Chair of the Brazosport Section of the American Chemical Society (1997), which received a National Phoenix Award for their NCW program organized by Dr. Smith. He received three Dow Chemical Special Recognition Awards and was a recipient of the 1997 Dow Chemical Central Research Inventor of the Year Award before joining Clemson University in 1998 at the rank of Assistant Professor. Dr. Smith was promoted to Associate Professor in 2001, granted early tenure in 2002, promoted to Professor of Chemistry in 2006, and in 2008, he accepted joint appointment as Professor of Material Science & Engineering at Clemson. In 2010, Prof. Smith worked in The University of Texas at Dallas as Robert A. Welch Distinguished Professor and in 2014 he moved to Mississippi State University as department head for Chemistry. Also in 2010, Dr. Smith was elected a Fellow of the American Chemical Society. Dr. Smith has over 143 publications and 18 US patents/applications.
The vapor phase methanol process, introduced by ICI technology in 1966, and the liquid phase methanol synthesis process (LPMeOHtm) introduced first by ChemSystems, Inc. (now Nexant) in 1975, are seen as the 2 big research/technology advances in the conventional methanol synthesis technology. The success of these 2 processes, both from a scientific and commercial standpoint, primarily is driven by the very superior, almost anomalous, performance of the proprietary Cu/ZnO/Al2O3ICI technical catalyst, and it’s very unique microstructural features, often termed as a “microcrystalline sponge”. The LPMeOHtm process overcomes some of the glaring drawbacks associated with the vapor phase process, viz., highly exothermal nature of methanol synthesis reactions, presence of local reactor hot spots which presents possibility of thermal runaways, and low per-pass CO/H2 conversions.
Missouri University of Science and Technology, USA
Frimpong is Professor and Robert Quenon Endowed Chair of Mining and Nuclear Engineering and the Director of the Heavy Mining Machinery Laboratory at Missouri S&T. He holds PhD (1992) from University of Alberta, MS (1988) from University of Zambia, and Postgraduate Diploma (1986) and BS (1985) from Ghana University of Science and Technology. Frimpong has over 25 years of experience in research, education, consulting, and industry practice. He previously worked as Professor and Associate Professor (University of Alberta), Assistant Professor.He is a Registered Professional Engineer in Canada, and a member of the Society for Mining, Metallurgy and Exploration, Canadian Institute of Mining, Metallurgy and Petroleum, American Society of Civil Engineers, and the Society for Modeling and Simulation International.
Dr. Donald R. Paul received his M.S. & Ph.D in Chemical Engineering from University of Wisconsin. He has published over 700 peer-reviewed papers and edited 10 books on important polymer topics. In round numbers his citations total about 40,000. He has been named a distinguished graduate of NC State University and the University of Wisconsin and he has teaching and research awards from UT, AIChE, ACS, and SPE plus being named a Fellow of AIChE, ACS (and by two divisions), SPE and NAMS. He was elected to NAE, and the Academy of Sciences of Mexico and of Bologna. He serves on 13 Editorial Advisory Boards and established a new ACS journal and edited it for 7 years. He chaired this department for 8 years, founded TMI and was its Director, he helped establish TAMEST and served as its President in 2006.
K. Nwifior, Department of Physics, Ebonyi State College of Education Ikwo, Ebonyi State, Nigeria
Aluminium Zinc Sulphide (Al2ZnS4) Ternary Thin Films were successfully grown on the substrates by Solution Growth Technique ( SGT ). The sources of Aluminium, Zinc and Sulphur ions are Aluminium Chloride, Zinc Sulphate, ethylenediamine tetraacetic acide (EDTA), concentrated ammonia solution and thiourea. The films were annealed at 300ËšC for 2 hours and characterized by UV-VIS-NIR Spectrophotometer in the wavelength range of 300nm-1000nm to determine the optical properties of the films. The optical transmittance was obtained directly by the Spectrophotometer. Other optical properties were determined by theoretical calculations. The average energy band gaps of the films grown at two different temperatures are 3.63 and 3.77eV for different dip times. The other optical properties have been reported. From the results, the wide direct energy band gap exhibited by the films reveals that the films are suitable materials as window layer in solar cells fabrication.
Dr. Khaled Habib holds a Ph.D in Chemical and Materials Engineering from the Optical Science and Technological Center of University of Iowa, Iowa City, Iowa, USA, 1988. Mr.Habib was a Post Doctoral Fellow at the Chemical Engineering Dept., and Materials science Dept., of the Technical University of Aachen, Aachen, Germany, 1991-1992. Mr. Habib is a senior research scientist/a full research professor with KISR (Kuwait). He specializes in “Laser optical interferometry as non-destructive testing (NDT) methods of materials evaluation in corrosive media, corrosion, and nano-structures of metallic glasses”. Mr. Habib has in his credit more than 135 articles in international refereed journals in his area of specialization. He is a fellow of the international Society of Photo- electronics and Optics (SPIE) and a senior member of Optics Society of America (OSA).
Kholmurad Khasanov has been working as a prime investigator in the physics area for almost 40 years, and achieved one of his most iconic discoveries in 2011, when He designed and started experimenting with his dynamic emitter. He has published about 100 papers in reputed journals. He has collaborated with several international organizations including NASA and "The Smithsonian"; my works can be found in the "Astrophysics Data System" under the Fluid Dynamics section. My experiments show great results in the production of nano-structures, and the applications.