Design optimization of highly efficient spectrum-splitting and beam-concentrating diffractive optical element for lateral multijunction solar cells

• Published in: Chinese physics B Vol. 23; no. 4; pp. 319 - 323
• Main Author: 王进泽 叶佳声 黄庆礼 许信 李冬梅 孟庆波 杨国桢
• Format: Journal Article
• Language: English
• Published: 01.04.2014
• Subjects: Algorithms; Design optimization; Diffractive optical elements; Optimization; Photovoltaic cells; Solar cells; Sunlight; 光束; 多结; 太阳能电池; 美国能源部; 聚光; 衍射光学元件; 设计优化; 频谱分解

Two improved algorithms are proposed to extend a diffractive optical element （DOE） to work under the broad spec- trum of sunlight. An optimum design has been found for the DOE, with a weighted average optical efficiency of about 6.8% better than that of the previous design. The optimization of desig...