集成在金属背反射器中的硅纳米线太阳能电池中等离激元增强与光学损耗之间的权衡。

The tradeoff between plasmonic enhancement and optical loss in silicon nanowire solar cells integrated in a metal back reflector.

作者信息

Zhou Keya, Guo Zhongyi, Li Xiaopeng, Jung Jin-Young, Jee Sang-Won, Park Kwang-Tae, Um Han-Don, Wang Ning, Lee Jung-Ho

机构信息

Department of Chemical Engineering, Hanyang University, Ansan, Gyeonggi, Korea.

出版信息

Opt Express. 2012 Sep 10;20 Suppl 5:A777-87. doi: 10.1364/OE.20.00A777.

DOI:10.1364/OE.20.00A777

PMID:23037544

Abstract

We perform a systematic numerical study to characterize the tradeoff between the plasmonic enhancement and optical loss in periodically aligned, silicon nanowire (SiNW) arrays integrated with a silver back reflector (Ag BR). Optimizing the embedded depth of the wire bottoms into a silver reflector achieved a highly efficient SiNW solar cell. Compared to the SiNW solar cell employing a flat back reflector, the embedded depth of ~20 nm resulted in the relative increase of ~5% in ultimate solar cell efficiency.

摘要

我们进行了一项系统的数值研究，以表征集成有银背反射器（Ag BR）的周期性排列的硅纳米线（SiNW）阵列中表面等离子体增强与光学损耗之间的权衡。将线底部嵌入银反射器的深度进行优化，从而实现了高效的SiNW太阳能电池。与采用平面背反射器的SiNW太阳能电池相比，约20 nm的嵌入深度使最终太阳能电池效率相对提高了约5%。