Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7118915 | Materials Science in Semiconductor Processing | 2015 | 6 Pages |
Abstract
Textured surface is commonly used to enhance the efficiency of silicon solar cells by reducing the overall reflectance and improving the light scattering. In this study, a comparison between isotropic and anisotropic etching methods was investigated. The deep funnel shaped structures with high aspect ratio are proposed for better light trapping with low reflectance in crystalline silicon solar cells. The anisotropic metal assisted chemical etching (MACE) was used to form the funnel shaped structures with various aspect ratios. The funnel shaped structures showed an average reflectance of 14.75% while it was 15.77% for the pillar shaped structures. The average reflectance was further reduced to 9.49% using deep funnel shaped structures with an aspect ratio of 1:1.18. The deep funnel shaped structures with high aspect ratios can be employed for high performance of crystalline silicon solar cells.
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Authors
Youngseok Lee, Heeseok Kim, Shahzada Qamar Hussain, Sangmyung Han, Nagarajan Balaji, Youn-Jung Lee, Jeahyung Lee, Junsin Yi,