His research program explores the use of nanostructured material architectures for solar energy conversion. From 1996 to 2006, he was a research staff member at the IBM Thomas J. Watson Research Center in Yorktown Heights, New York investigating using polymer self-assembly for fabrication of high-performance semiconductor electronics. During his career, he has also performed experimental research in low-temperature scanning tunneling microscopy, single-electron tunneling devices, superconductivity in metal nanoparticles, nanocrystal-based electronic devices, and ferroelectric non-volatile memories. He earned his doctorate in physics from Harvard University and bachelor’s in physics and mathematics from Vanderbilt University. He is a fellow of the American Physical Society, a member of the Board of Directors of the Materials Research Society, and a senior member of the Institute of Electrical and Electronics Engineers.
He received his bachelor’s degree in physics and his master’s and doctorate degrees in electrical engineering from the University of Washington. His main areas of research are distribution system analysis and power system operations. He is currently a principal research engineer at the Pacific Northwest National Laboratory working at the Battelle Seattle Research Center. He is an adjunct faculty member at Washington State University, an affiliate assistant professor at the University of Washington, and a licensed professional engineer in Washington. He is the past chair of the Distribution System Analysis Sub-Committee and the current secretary of the Analytics Methods for Power Systems Committee (AMPS); formerly known as the Power System Analysis, Computing, and Economics (PSACE) Committee.
He is a research and development engineer in the Experiment Analysis Group of Nuclear Science and Technology at Idaho National Laboratory. In his present position, he leads in-pile instrumentation development for transient irradiation testing and is a principal investigator for transient testing of metallic fuels. He is an experiment safety and performance analyst for experiments at the Advanced Test Reactor and the Transient Reactor Test Facility. In addition, he is a technical lead for measurement of thermophysical properties of nuclear materials. He has expertise in energy transport in condensed matter, liquids, gases, and material interfaces. He has significant experience in advanced measurements of thermophysical properties of nuclear materials using multi-scaled approaches, including nano-scale measurements using atomic force microscopy, laser-based microscopic photothermal methods, and bench-scale high temperature thermal conductivity techniques. He also has expertise in numerical and commercial finite element analysis. He holds bachelor’s and master’s degrees from Utah State University and a joint doctorate from Utah State University and Universite de Reims Champagne-Ardenne. He is a member of American Nuclear Society (ANS) and American Society of Mechanical Engineers. He was the founding president of the ANS Student Chapter at Utah State University and currently serves as an Executive Committee member for the Material Science and Technology Division of ANS.
He received his bachelor's in chemistry from Reed College in 1990, and his doctorate in chemistry from Harvard University in 1996. He specializes in multi-disciplinary problem solving in the physical sciences and their corresponding engineering disciplines. Over his 22-year research and development (R&D) career, he has developed expertise in physical chemistry, chemical kinetics, atmospheric chemistry, instrumentation, electronics (digital, analog, power, and RF), spectroscopic sensing, lasers, fiber optics and wave guides, classical optics, electro-optics, electromagnetics, electromechanical systems, heat transfer, materials science, mechanical engineering, manufacturing processes, and renewable energy technologies.
He has won four R&D 100 Awards, holds numerous patents, has 10 active licenses on his inventions, and given many invited talks on the subject of serial innovation. In 2015, he was selected by the U.S. Department of Energy as its Inaugural SunShot Innovator in Residence. He invented the Radical-Ion Flow Battery under the SunShot Innovator in Residence Program to address the need for low-cost, highly scalable electrochemical grid storage, and the performance limitations of prior art battery chemistries in this demanding application. His current research portfolio is focused on electrochemical grid storage, the elimination of rare-earth magnets in wind turbines, and semiconductor thermal management (power electronics, CPUs, GPUs).
As the Chemical Sciences Division director of Strategic Initiatives and Joint Center for Artificial Photosynthesis (JCAP) deputy director, she leads technical research and development program design and management, both foundational and applied, in semiconductor and energy science and technology arenas. She is broadly experienced in characterization of complex materials systems using solid state and gas phase methods and modeling of materials transformations, as well as process innovation, development, and root cause analysis, particularly for nanoscale modifications. Prior to joining Lawrence Berkeley National Laboratory, she managed materials development for the startup InVisage Technologies and handled materials research, business planning, and research alliances at IBM’s Almaden Research Center.
He is a staff scientist at Idaho National Laboratory (INL) and a recognized expert in materials characterization and instrumentation. He has a doctorate in materials science and condenser matter physics from the University of California, Davis. His work has spanned global and nationwide collaborations. He has worked at premier nanocharacterization facilities at national laboratories and universities and has expert knowledge of scanning transmission electron microscopy, atom probe tomography and electron loss spectroscopy. His primary research interests lie in the investigation of materials and the origins of their physical properties. He has heavily leveraged the use of multidimensional microscopy, diffraction and artificial intelligence to address delays in data access and extraction, which has led to a new frontier in advanced microscopy. At INL, he continues to focus on the development and application of machine and deep learning in order to decipher and decimate information from images, spectra, and diffraction patterns to maximize the effectiveness, efficiency and utility of advanced microscopy. He is an invited academic faculty member and manager for a diverse group of postdoctoral research scientists, graduate students, and technicians across several national laboratories and universities. He is an author of 45 peer-reviewed publications, a recognized reviewer, and a technical contributing member to energy materials research. He was awarded two patents and has three patents pending, including an innovative approach to computational microscopy using machine learning.
He is the manager of the High Efficiency Crystalline Photovoltaics Group at the National Renewable Energy Laboratory (NREL). His interests at NREL have been in the development of next-generation multi-junction high-efficiency solar cells for concentrator systems and the transfer of this technology to industry. One of his early focuses after joining the group was to adapt the GaInP/GaAs multi-junction cell technology for concentrator operation, developing the first monolithic two-terminal solar cell to have a verified efficiency with more than 30%. More recently, he has studied novel semiconductor materials for photovoltaics, such as GaInNAs for potential application in a 1-eV-bandgap device on conventional GaAs or Ge substrates, as well as developing concepts for junctions suitable for fabrication on Si. His current work centers on development of future generations of lattice-mismatched multi-junction cell structures for ultrahigh-efficiency operation under concentration. He received his bachelor’s in physics from Princeton University and his doctorate in applied physics from Stanford University. He joined NREL in 1990.
He is a manager in the Energy Processes and Materials Division at Pacific Northwest National Laboratory's (PNNL). As a physical and materials chemist with research leadership experience on several clean energy topics at PNNL, he has managed solar energy programs since 2010. He was previously detailed with the U.S. Department of Energy (DOE), including in support of the National Laboratory Task Force of the Secretary of Energy Advisory Board. Prior to that, he served for 7 years as a manager of the Applied Materials Science Group at PNNL where he focused on developing and deploying materials science capabilities in support of the DOE’s energy mission. He received his doctorate in physical chemistry from the University of Chicago.
He is a human factors engineer in the Human Factors, Controls, and Statistics Department with 37 years of experience in various human factors engineering roles in heavy industry, defense, nuclear, and commercial organizations. His primary focus is on making work more effective, efficient, and satisfying through the design of human-centered tools, methods, and work environments. He has worked at Idaho National Laboratory since 2010. His current work includes researching and developing methods and procedures to integrate human factors principles in the systems engineering process for advanced and modernized nuclear power stations with an emphasis on human-system interfaces and control room design and information visualization. He has a master’s degree in human computer interaction from the University of South Africa and associate degrees in human computer interaction and industrial engineering.
He is a research engineer at Lawrence Livermore National Laboratory, and is a member of the Center for Micro-Nano Technologies in the Materials Engineering Division. He joined LLNL in 2013 after graduating from the Massachusetts Institute of Technology with a S.B. in physics (’07), a S.B. in mechanical engineering (’07), a M.S. in mechanical engineering (’09) and a PhD in Mechanical engineering (’13). He leads the Precision Micro/Nano group at LLNL, which is focused on applying the principles of determinism to micro/nano design, manufacturing, metrology and assembly. He is leading the development of an uncertainty-based analysis of X-ray CT, as well as developing a high speed, large range precision micromirror array. His research interests include precision engineering, MOEMS, additive micromanufacturing, X-ray metrology, uncertainty analysis, and compliant mechanism design. He is an NDSEG fellow, a member & on the board of directors of the American Society for Precision Engineering (ASPE), the chair of the ASPE Micro-Nano Technical Leadership Committee, and is a member of the U.S. National Academy of Engineering. He has 10 patents and over 65 papers published and submitted.
He is a fellow of the American Society of Mechanical Engineers and a distinguished member of the technical staff at Sandia National Laboratories, where he has worked since 1993 on problems involving solar energy, water safety and sustainability, heat- and mass-transfer processes in porous media, and microchemical sensor systems for environmental monitoring. Since 2008, he has worked in the Concentrating Solar Technologies Department at Sandia performing research on high-temperature solar thermal receivers, heliostat optics, and systems analyses. He has authored over 200 scientific papers, holds 11 patents, is an author and co-editor of three books, and is the associate editor of Solar Energy Journal. He received an Outstanding Professor Award at the University of New Mexico in 1997, and received the national Asian American Engineer of the Year Award in 2010. He received an R&D 100 Award in 2013 for his development of the Solar Glare Hazard Analysis Tool, and another R&D 100 Award in 2016 for his development of the Falling Particle Receiver for Concentrated Solar Energy. In 2008, he won Discover Magazine’s “The Future of Energy in Two Minutes or Less” video contest.
He received his bachelor’s in mechanical engineering from the University of Wisconsin-Madison in 1989, and his master’s and doctorate degrees in mechanical engineering from the University of California at Berkeley in 1990 and 1993.
He is a research scientist from Idaho National Laboratory (INL) with extensive experience in the fields of materials electrochemistry as applied to reactive and refractory metals, process metallurgy, synthesis and characterization of high-temperature metals and materials, energy-efficient manufacturing processes, and materials recycling. While working at Bhabha Atomic Research Center, India, he developed an entirely new (molten salt based) process flow-sheet for the production of vanadium metal with a view to fabricate a self-powered beta detector. He also worked on the development of a new high-temperature process for the production of commercial-grade zirconia and silica powders from the indigenously available zircon mineral. His other projects have been aimed at recovering valuable materials from waste, secondary resources, and lean ore bodies. His team could successfully develop a technology for the conversion of Zr-2.5Nb alloy scrap to high purity zirconium crystal bar by van Arkel de Boer process. This technology can be adopted to successfully transform the alloy scrap into high purity zirconium crystal bar, a metal of significant importance to the nuclear energy program. At the University of Cambridge, he worked on the process optimization studies pertaining to the preparation of titanium metal and its alloys by a novel molten salt electrochemical process. He developed a preparative process for titanium-lanthanum alloy from their mixed oxides. At the Massachusetts Institute of Technology, he worked on a high-temperature electrochemical process to generate oxygen from the lunar regolith. This is one of the two technologies shortlisted by NASA for its eventual deployment to produce breathable oxygen from in situ (lunar) resources. At INL, the scientific underpinning of his research activities has been to study the behavior of metals and materials under a given set of conditions. His diverse research pursuits include materials electrochemistry, energy-efficient manufacturing processes, and materials recycling.
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