Abstract
An ultrathin amorphous silicon solar cell with conformal zig–zag nanoconfiguration is studied from both light-trapping and light-conversion perspectives. The design improves the front antireflection property, optimizes the rear metallic reflector, and elongates the optical path inside the photoactive layer. Compared to conventional nanoconfigurations, this system shows significant absorption enhancement in the whole amorphous silicon band and exhibits extremely low sensitivity to light polarization. The nano-optimization indicates that the short-circuit current density (light-conversion efficiency) of the 200-nm-thick solar cell can be (13.38%), showing an enhancement factor of 32.90% (33.53%) from the planar system.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Li-Hao Zhu, Ming-Rui Shao, Ru-Wen Peng, Ren-Hao Fan, Xian-Rong Huang, and Mu Wang
Opt. Express 21(S3) A313-A323 (2013)
Yankun Chen, Weihua Han, and Fuhua Yang
Opt. Lett. 38(19) 3973-3975 (2013)
Zihuan Xia, Yonggang Wu, Renchen Liu, Zhaoming Liang, Jian Zhou, and Pinglin Tang
Opt. Express 21(S3) A548-A557 (2013)