Monthly Talk Series
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Abstract:
Transmission electron microscopy (TEM) has been an indispensable tool for physical, biological, and materials sciences. Since its invention in 1930s, TEM has undergone significant advancements in electron optics, digital cameras, detectors, spectrometers, and aberration correctors to achieve the unprecedented spatial resolution on the level of sub-Ångström, enabling direct visualization of atomic structures of materials, as well as spatially resolved atom-by-atom chemical mapping when combined with analytical spectroscopies (EDS and EELS). Recent advances of in-situ TEM create a new approach to observe dynamic behaviors under various stimuli and environments that can offer physically meaningful and more relevant understanding of structure-property relationships in real world materials. In this talk, I will describe how TEM can be leveraged as a versatile toolbox for solving fundamental science questions and real-world challenges in today’s materials science and technologies. I will show a few case studies to highlight our recent efforts in this area, aiming to provide design principles and viable solutions for clean energy and sustainability.
Transmission electron microscopy (TEM) has been an indispensable tool for physical, biological, and materials sciences. Since its invention in 1930s, TEM has undergone significant advancements in electron optics, digital cameras, detectors, spectrometers, and aberration correctors to achieve the unprecedented spatial resolution on the level of sub-Ångström, enabling direct visualization of atomic structures of materials, as well as spatially resolved atom-by-atom chemical mapping when combined with analytical spectroscopies (EDS and EELS). Recent advances of in-situ TEM create a new approach to observe dynamic behaviors under various stimuli and environments that can offer physically meaningful and more relevant understanding of structure-property relationships in real world materials. In this talk, I will describe how TEM can be leveraged as a versatile toolbox for solving fundamental science questions and real-world challenges in today’s materials science and technologies. I will show a few case studies to highlight our recent efforts in this area, aiming to provide design principles and viable solutions for clean energy and sustainability.
Biography:
Kai He is an assistant professor of materials science and engineering at University of California, Irvine (UCI). He received his Ph.D. at Arizona State University and completed his postdoctoral training at University of Maryland and Brookhaven National Laboratory. He was a research assistant professor at Northwestern University and an assistant professor at Clemson University before joining UCI in 2022. Dr. He’s research is at the intersection of microscopy, materials, and sustainability, focusing on the development of advanced electron microscopy methodologies and their applications in multifunctional materials for quantum information sciences and clean energy technologies. He has (co)authored more than 80 publications. He is the recipient National Science Foundation CAREER Award, U.S. Department of Energy Early Career Award, NSF EPSCoR Track-4 (Early Career Faculty) Fellowship, among others.
Irvine Ranch Water District makes its facilities available for use by residents and nonprofit organizations merely as a public service, but does not, by allowing this use, endorse or support the purpose of the event or its sponsor.
Kai He is an assistant professor of materials science and engineering at University of California, Irvine (UCI). He received his Ph.D. at Arizona State University and completed his postdoctoral training at University of Maryland and Brookhaven National Laboratory. He was a research assistant professor at Northwestern University and an assistant professor at Clemson University before joining UCI in 2022. Dr. He’s research is at the intersection of microscopy, materials, and sustainability, focusing on the development of advanced electron microscopy methodologies and their applications in multifunctional materials for quantum information sciences and clean energy technologies. He has (co)authored more than 80 publications. He is the recipient National Science Foundation CAREER Award, U.S. Department of Energy Early Career Award, NSF EPSCoR Track-4 (Early Career Faculty) Fellowship, among others.
Irvine Ranch Water District makes its facilities available for use by residents and nonprofit organizations merely as a public service, but does not, by allowing this use, endorse or support the purpose of the event or its sponsor.
