Illumination Angle Insensitive Single Indium Phosphide Tapered Nanopillar Solar Cell
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- 作者：Wai Son Ko ; Thai-Truong D. Tran ; Indrasen Bhattacharya ; Kar Wei Ng ; Hao Sun ; Connie Chang-Hasnain
- 刊名：Nano Letters
- 出版年：2015
- 出版时间：August 12, 2015
- 年：2015
- 卷：15
- 期：8
- 页码：4961-4967
- 全文大小：441K
- ISSN：1530-6992
文摘
Low cost, high efficiency photovoltaic can help accelerate the adoption of solar energy. Using tapered indium phosphide nanopillars grown on a silicon substrate, we demonstrate a single nanopillar photovoltaic exhibiting illumination angle insensitive response. The photovoltaic employs a novel regrown core鈥搒hell p-i-n junction to improve device performance by eliminating shunt current paths, resulting in a high VOC of 0.534 V and a power conversion efficiency of 19.6%. Enhanced broadband light absorption is also demonstrated over a wide spectral range of 400鈥?00 nm.