Paper 12886-24
Paper 12886-24
InGaN photovoltaic cells for applications in laser power beaming
On demand | Presented live 30 January 2024 
Abstract
We tested the optical wireless power transmission (OWPT) using InGaN photovoltaic cells and lasers below 400 nm. As a result, 24.5% and 20.8% photoelectric conversion efficiencies were obtained at laser power densities of 16.5 mW/cm2 and 398 mW/cm2, respectively. The conversion efficiency decreased as incident laser power increased. On the other hand, the conversion efficiencies increased with increasing the temperature of the InGaN photovoltaic cells. We investigated the causes of these phenomena and found that lower resistance and improved crystal quality of InGaN cells significantly improve conversion efficiency further.
Presenter
Masahiro Koga
Chiba Institute of Technology (Japan)
Masahiro Koga was born in Tokyo, Japan, in 1999. He received the B.E. degrees from Chiba Institute of Technology, Chiba, Japan, in 2022. In the same year, he entered the graduate school of Chiba Institute of Technology. His research interests include laser power beaming.