Abstract
III-V multijunction solar cells require solar concentrators with a high concentration ratio to reduce per watt cost and to increase solar energy transforming efficiency. This paper discusses a novel solar concentrator design that features a high concentration ratio, high transfer efficiency, thin profile design, and a high solar acceptance angle. The optical design of the concentrator utilizes a toroidal relay module, which includes both the off-axis relay lens and field lens design in a single concentric toroidal lens shape. The optical design concept of the concentrator is discussed and the simulation results are shown. The given exemplary design has an aspect ratio of 0.24, a high averaged optical concentration ratio , a maximum efficiency of 76.8%, and the solar acceptance angle of .
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Ya-Chi Lu and Jui-Wen Pan
Appl. Opt. 60(12) 3281-3289 (2021)
Hongcai Ma and Lin Wu
Appl. Opt. 54(20) 6217-6223 (2015)
Yanru Jiang, Qingkun Xie, Enshi Qu, Liyong Ren, Jian Liang, and Jing Wang
Appl. Opt. 58(19) 5206-5212 (2019)