中国物理B ›› 2016, Vol. 25 ›› Issue (2): 28401-028401.doi: 10.1088/1674-1056/25/2/028401

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Investigations of the optical properties of Si surface with microwires for solar cell applications

Li Li(郦莉), Shi-Liang Wu(吴仕良), Dong Yu(虞栋), Wei Wang(王伟), Wen-Chao Liu(刘文超), Xiao-Shan Wu(吴小山), Feng-Ming Zhang(张凤鸣)   

  1. 1. Collaborative Innovation Center of Advanced Microstrucutres, Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China;
    2. National Laboratory of Solid State Microstructures, Center of Photovoltaic Engineering and School of Modern Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
  • 收稿日期:2015-06-25 修回日期:2015-10-22 出版日期:2016-02-05 发布日期:2016-02-05
  • 通讯作者: Feng-Ming Zhang E-mail:fmzhang@nju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U1332205, 11274153, 11204124, and 11404091).

Investigations of the optical properties of Si surface with microwires for solar cell applications

Li Li(郦莉)1, Shi-Liang Wu(吴仕良)1, Dong Yu(虞栋)1, Wei Wang(王伟)1, Wen-Chao Liu(刘文超)2, Xiao-Shan Wu(吴小山)1, Feng-Ming Zhang(张凤鸣)1   

  1. 1. Collaborative Innovation Center of Advanced Microstrucutres, Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China;
    2. National Laboratory of Solid State Microstructures, Center of Photovoltaic Engineering and School of Modern Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
  • Received:2015-06-25 Revised:2015-10-22 Online:2016-02-05 Published:2016-02-05
  • Contact: Feng-Ming Zhang E-mail:fmzhang@nju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U1332205, 11274153, 11204124, and 11404091).

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摘要： Combined with the rough textures which are usually used for fabricating the planar solar cells, textured-microwire (MW) structures (there are MW textures on the tops of MWs) are fabricated. Both simulative and experimental investigations of the optical properties of Si surface with microwires are carried out and the results show that surfaces of textured-MW structures exhibit lower reflectance in the short wavelength range, but higher reflectance in the long wavelength range than the conventional textured surface. It is also shown, consequently, that the textured-MW structures could absorb more photons in the short wavelength range, which could help improve the performance of the solar cells.

关键词: microstructure, reflectivity, silicon, solar energy

Abstract: Combined with the rough textures which are usually used for fabricating the planar solar cells, textured-microwire (MW) structures (there are MW textures on the tops of MWs) are fabricated. Both simulative and experimental investigations of the optical properties of Si surface with microwires are carried out and the results show that surfaces of textured-MW structures exhibit lower reflectance in the short wavelength range, but higher reflectance in the long wavelength range than the conventional textured surface. It is also shown, consequently, that the textured-MW structures could absorb more photons in the short wavelength range, which could help improve the performance of the solar cells.

Key words: microstructure, reflectivity, silicon, solar energy

中图分类号:  (Photoelectric conversion)

  • 84.60.Jt
81.65.Cf (Surface cleaning, etching, patterning) 78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)