We have designed a single thin planar diffractive optical element ( DOE) based on the principle of diffractive optics to simultaneously split and concentrate the incident light into several energy ranges for lateral multijunction solar cells. A prototype with the maximum thickness of 6.95 mu m and 32 quantized levels in depth was fabricated by photolithographic technology. The spectrum-splitting and concentrating performance of the prototype, which were measured quantitatively, show good agreement with the simulation results. As mass production of a DOE can be produced by imprint technology, our design provides a feasible means for low-cost, large-scale, and high-efficiency photovoltaic applications. (C) 2013 Optical Society of America
Science & Technology
; Physical Sciences
1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Lab Opt Phys, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Sichuan Provinc, Peoples R China
Huang, Qingli,Wang, Jinze,Quan, Baogang,et al. Design and fabrication of a diffractive optical element as a spectrum-splitting solar concentrator for lateral multijunction solar cells[J]. APPLIED OPTICS,2013,52(11):2312-2319.