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International Journal of Photoenergy
Volume 2018, Article ID 7947015, 4 pages
https://doi.org/10.1155/2018/7947015
Research Article

Effect of Surface Structure on Electrical Performance of Industrial Diamond Wire Sawing Multicrystalline Si Solar Cells

1Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
2CECEP Solar Energy Technology (Zhenjiang) Co. Ltd., Zhenjiang 212132, China
3Beijing University of Technology, Beijing 100124, China
4Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

Correspondence should be addressed to Su Zhou; moc.liamtoh@3002usuohz and Zheng Xu; nc.ude.utjb@uxgnehz

Received 22 November 2017; Revised 19 February 2018; Accepted 7 March 2018; Published 2 May 2018

Academic Editor: Germà Garcia-Belmonte

Copyright © 2018 Shaoliang Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report industrial fabrication of different kinds of nanostructured multicrystalline silicon solar cells via normal acid texturing, reactive ion etching (RIE), and metal-assisted chemical etching (MACE) processes on diamond wire sawing wafer. The effect of different surface structure on reflectivity, lifetime, and electrical performance was systematically studied in this paper. The difference between industrial acid, RIE, and MACE textured multicrystalline silicon solar cells to our knowledge has not been investigated previously. The resulting efficiency indicates that low reflectivity surface structure with the size of 0.2–0.8 μm via RIE and MACE process do not always lead to low lifetime compared with acid texturing process. Both RIE and MACE process is promising candidate for high efficiency processes for future industrial diamond wire sawing multicrystalline silicon solar cells.