Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal

SHEN Hong-jun; LU Hui-dong; CHENG Xue-zhen

doi:10.3788/fgxb20123306.0633

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Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal

paper | 更新时间：2020-08-12

- Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal
- Chinese Journal of Luminescence Vol. 33, Issue 6, Pages: 633-639(2012)
- 作者机构：
  
  1. 宁夏大学物理电气信息学院,宁夏银川,750021
  2. 宁夏宁电光伏材料有限公司,宁夏银川,750021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123306.0633
  CLC： O431
- Received：01 March 2012，
  
  Revised：2012-4-28，
  
  Published Online：10 June 2012，
  
  Published：10 June 2012
- 稿件说明：
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沈宏君, 卢辉东, 程学珍. 一维衍射光栅和一维光子晶体组成的硅薄膜太阳能电池背反射器[J]. 发光学报, 2012,(6): 633-639

CHEN Hong-Jun, LU Hui-Dong, CHENG Xue-Zhen. Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal[J]. Chinese Journal of Luminescence, 2012,(6): 633-639
沈宏君, 卢辉东, 程学珍. 一维衍射光栅和一维光子晶体组成的硅薄膜太阳能电池背反射器[J]. 发光学报, 2012,(6): 633-639 DOI： 10.3788/fgxb20123306.0633.

CHEN Hong-Jun, LU Hui-Dong, CHENG Xue-Zhen. Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal[J]. Chinese Journal of Luminescence, 2012,(6): 633-639 DOI： 10.3788/fgxb20123306.0633.

摘要

设计了一种由一维衍射光栅和一维光子晶体组成的用于薄膜硅太阳能电池的背反射器

采用勒让德多项式展开法对一维光子晶体和三角形光栅结构进行了参数优化

并对400~1 200 nm入射电磁波的反射率进行了模拟计算。结果表明:在高反射率的一维光子晶体作用下

利用衍射光栅可以得到大倾角的反射光

有效地延长光子在电池吸收体的传播路径

使其得到充分吸收。衍射光栅加光子晶体结构的背反射器可以大幅提高电池的捕光能力

提高太阳能电池的转化效率。

Abstract

We designed a type of reflector that consisted of one-dimensional diffraction gratings and one-dimensional photonic crystal. It can be used for thin-film silicon solar cells. The structure parameters were optimized by Legendre polynomial expansion method

and the reflectivity at the range of 400~1 200 nm was calculated. Under the high reflectivity one-dimensional photonic crystal

the propagation path of the photon can be extended and absorbed in the battery. The results show that the diffraction grating and a back reflector in the photonic crystal structure are efficient at the range of 750~1 100 nm. Back-reflection layer can greatly improve the light harvesting capacity and enhance the conversion efficiency of solar cells.

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references

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