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Optical Engineering

Enhanced absorption in elliptical silicon nanowire arrays for solar energy harvesting
Author(s): Rui Ren; Yong-Xin Guo; Ri-Hong Zhu
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Paper Abstract

A crystalline Si thin film solar cell with elliptical silicon nanowire (SiNW)-decorated surface is presented. The elliptical SiNW solar cell performs broadband light absorption in the low energy region while maintaining strong absorption in the high energy region. For the elliptical SiNW solar cells with 1-μm underlying Si substrate, Jsc can be improved to 24.2  mA/cm 2 , which is 16% higher than that of the circular SiNW-decorated solar cells. After integration with an Ag reflector, the elliptical SiNW solar cells can achieve higher Jsc of 26.3  mA/cm2 , demonstrating a photocurrent enhancement of 12.6% as compared with circular SiNW control device.

Paper Details

Date Published: 6 February 2014
PDF: 5 pages
Opt. Eng. 53(2) 027102 doi: 10.1117/1.OE.53.2.027102
Published in: Optical Engineering Volume 53, Issue 2
Show Author Affiliations
Rui Ren, Nanjing Univ. of Science and Technology (China)
Yong-Xin Guo, National Univ. of Singapore (Singapore)
Ri-Hong Zhu, Nanjing Univ. of Science and Technology (China)

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