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James Coleman, NAE, Presidential Distinguished Professor, Electrical Engineering Department
Abstract: Quantum dots are very small semiconductor nanocrystals with dimensions in the range of a few tens of nanometers. These remarkable materials have quantum-defined electronic and optical behavior that is very different from conventional bulk semiconductors and approaches that of single atoms with some important differences. They are becoming important in various applications including lasers and LEDs, solar cells and displays. Here we describe the basis for their behavior, how they are designed and fabricated, some of the applications, and a glimpse into the future.
Bio: James J. Coleman received his degrees in electrical engineering from the University of Illinois, Urbana. After working in industry at Bell Laboratories and Rockwell International he joined the faculty of Electrical and Computer Engineering at the University of Illinois, Urbana. He and his students were the first group to define experimentally the ranges of wavelength, threshold current density, and reliability of 980 nm strained-layer InGaAs lasers. After 31 years, he retired from Illinois as the Intel Alumni Endowed Chair Emeritus. In 2019, he joined the University of Texas at Arlington as Presidential Distinguished Professor of Photonics.
Professor Coleman has published more than 600 journal publications and conference presentations, 13 book chapters, and 10 US patents. He is a member of the US National Academy of Engineering and a Fellow of the IEEE, OSA, SPIE, APS, AAAS, and the National Academy of Inventors. He was awarded the 2021 IEEE Jun-ichi Nishizawa Medal for “for contributions to the development of strained-layer semiconductor lasers.” His other awards include the John Tyndall Award of the IEEE Photonics Society and the Optical Society of America, the SPIE Technical Achievement Award, and the OSA Nick Holonyak, Jr. Award.
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