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Light trapping performance of the silicon nanowire and nanocone based solar cells

GUANG DAI1,2, RUOWU WU1, ANJUN ZHANG1,2, XUEJING BAO2, HONGPING ZHOU2, FEI SHEN2, ZHONGYI GUO2

Affiliation

  1. State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang, 471003, China
  2. School of Computer and Information, Hefei University of Technology, Hefei, 230009, China

Abstract

We have investigated the performances of the silicon nanowires (SiNW) and silicon nanocones (SiNC) arrays solar cell with different structural parameters. The structural parameters of the thin film solar cell, such as the filling ratio, the period and the length of the nano-wires/cones arrays, can affect the ultimate conversion efficiency greatly. For 3μm SiNW arrays solar cells, with or without the silicon substrates, the obtained corresponding optimizing ultimate efficiency reach to 24.07% and 21.99% respectively, and that of the SiNC arrays solar cells can reach to 31.39% nearly. We have also discussed the simulated results based on the multiple reflection effects, the graded refractive index theory, and guiding mode coupling effect, which will give a guideline for the optimal design of SiNW and SiNC based solar cells..

Keywords

Solar Cell, Si Nanowire (SiNW), Si Nanocone (SiNC).

Submitted at: May 15, 2015
Accepted at: Aug. 3, 2016

Citation

GUANG DAI, RUOWU WU, ANJUN ZHANG, XUEJING BAO, HONGPING ZHOU, FEI SHEN, ZHONGYI GUO, Light trapping performance of the silicon nanowire and nanocone based solar cells, Journal of Optoelectronics and Advanced Materials Vol. 18, Iss. 7-8, pp. 618-624 (2016)