Hybrid process for texturization of diamond wire sawn multicrystalline silicon solar cell |
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| Authors: | Ye Jiang Honglie Shen Tian Pu Chaofan Zheng Quntao Tang Wangyang Yang Jing Wu Chunbao Rui Yufang Li |
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| Affiliation: | 1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing, P.R. China;2. Phono Solar Technology Co. Ltd., Nanjing, P.R. China |
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| Abstract: | Acid texture is difficult for diamond wire sawn (DWS) multicrystalline silicon (mc‐Si) wafer owing to the inhomogeneous distribution of damage layer on the surface. In this article, metal‐assisted chemical etching (MACE) has been selected for introducing a porous seeding layer to induce acid texturing etching. SEM results show that the oval pit structures coverage get obvious improvement even on the smooth areas. Owing to the further improved light absorption ability by second MACE and nanostructure rebuilding (NSR) process, nanostructured DWS mc‐Si solar cell has exhibited a conversion efficiency of 17.96%, which is 0.45% higher than that of DWS wafer with simple acid texture process. (© 2016 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim) |
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| Keywords: | diamond wire sawing multicrystalline silicon metal‐assisted chemical etching nanostructures texturing solar cells |
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