Paper 13111-47
Paper 13111-47
New advancements in semiconductor optical devices based on plasmonics and nanophotonics (Invited Paper)
21 August 2024 • 1:35 PM - 2:00 PM PDT | Conv. Ctr. Room 4
Abstract
Recent strides in plasmonics and nanophotonics have markedly advanced light emission technologies, effectively addressing the "green gap" in LEDs and enhancing UV emissions. Innovations like SiO2 thin film deposition on InGaN/GaN quantum wells and UV irradiation have repaired defects and significantly improved green light efficiency by reducing the quantum-confined Stark effect (QCSE). Similarly, employing surface plasmon resonance (SPR) on semi-polar GaN substrates has boosted internal quantum efficiencies, presenting a solution to the green gap by enhancing photoluminescence. Additionally, SPR-induced photoluminescence enhancement in CdSe/ZnS quantum dots points to potential advancements in RGB display technologies. In UV emission, techniques such as nanostructuring and localized SPR have led to notable enhancements, especially with Ga2O3 and ZnO structures treated with metal films, showcasing the effectiveness of plasmonic effects in emission enhancement. These developments signal significant progress in semiconductor optics, promising more efficient, powerful, and versatile optoelectronic devices for a range of applications, from lighting to advanced displays.
Presenter
Osaka Metropolitan Univ. (Japan)
Prof. Okamoto received his Ph.D. degree in Chemistry from Kyoto University, Kyoto, Japan, in 1998. From 1998 to 2000, he was a researcher at the Venture Business Laboratory of Kyoto University and from 2000 to 2002, he was a Research Fellow of the Japan Society for the Promotion of Science (JSPS). He then worked as a Postdoctoral Scholar of Electrical Engineering at the California Institute of Technology from 2001 to 2005, where he was a Senior Research Fellow of Physics from 2005 to 2007. From 2007 to 2011, he was a Research Associate Professor of Electronic Science and Engineering at Kyoto University, and from 2011 to 2018, he was an Associate Professor at the Institute for Materials Chemistry and Engineering at Kyushu University. Since 2018, he has been a Professor in the Department of Physics and Electronics at Osaka Prefecture University, which changed its name to Osaka Metropolitan University in April 2022 due to university integration.