4.7 Article

Optimal design and photoelectric performance study of micro-lens light trapping structure for CIGS thin film solar cell in BIPV

期刊

RENEWABLE ENERGY
卷 177, 期 -, 页码 1356-1371

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2021.06.036

关键词

BIPV; CIGS Thin film solar cell; Micro-lens light trapping structure; Photoelectric performance

资金

  1. National Key Research and Devel-opment Program of China [2018YFC0704400]
  2. Pro-gramme of Introducing Talents [B13011]
  3. HebeiProvince Science and Technology Projects [19274305D]

向作者/读者索取更多资源

An optimal design method of micro-lens light trapping structure for thin film solar cells applied to building integrated photovoltaic systems is proposed in this paper. The study investigates the photoelectric performance of Copper Indium Gallium Selenium (CIGS) thin film solar cells with micro-lens light trapping structure under different scenarios, showing that the V-shaped micro-lens light trapping structure performs the best in capturing light.
In this paper, an optimal design method of micro-lens light trapping structure for thin film solar cells applied to building integrated photovoltaic (BIPV) is proposed. Under three common scenes of BIPV, including lighting roof, sunshade and building facade, the optimal design and photoelectric performance study of Copper Indium Gallium Selenium (CIGS) thin film solar cells with micro-lens light trapping structure are studied. Among the three kinds of micro-lens light trapping structures, V-shaped, semi-cylindrical and concave, the light capture performance of V-shaped micro-lens light trapping structure is the best. The V-shaped micro-lens light trapping structure with a vertex angle of 70 degrees and a groove depth of 100 um has the best light capture performance in lighting roof and sunshade scene, which can increase the annual radiation flux of the absorption layer incident surface by 4.45% and 2.84% respectively. The V-shaped micro-lens light trapping structure with a vertex angle of 60 degrees and a groove depth of 200 mu m has the best light capture performance in building facade scene, which can increase the annual radiation flux of the absorption layer incident surface by 7.63%. When the light source is vertically incident, these two V-shaped micro-lens light trapping structures can increase the short-circuit current density by 15.57% and 7.11% respectively. (C) 2021 Elsevier Ltd. All rights reserved.

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