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Proceedings Paper

Role of nanocone and nanohemisphere arrays in improving light trapping of thin-film solar cells
Author(s): Taoran Zhang; Fei Bian; Xiaoguang Jia; Chenbo Wang; Jian Wang; Haiyan Wang; Zhaopeng Xu
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Paper Abstract

The optical trap of thin-film silicon solar cells is very important for improving efficiency and reducing cost. A composite nanostructure with front silicon nanocone gratings and rear Ag nanohemisphere gratings is proposed. The relationship between the geometrical parameters of the hybrid nanostructures and the optical properties of the silicon solar cells was studied using the finite element method. The light-harvesting ability was studied systematically using COMSOL Multiphysics. The simulation results show that the optimum parameters of the front silicon nanocone grating are a diameter of 350 nm, height of 250 nm, and pitch/diameter ratio of 1.1. The optimum parameters of the rear Ag hemispherical grating are a diameter of 270 nm and pitch/diameter ratio of 1.4. The average absorption of the hybrid nanostructure solar cell is 78.5%, and the short-circuit current density is 36.6 mA/cm2, representing an enhancement of 171.1% compared with that (13.5 mA/cm2) of the reference cell.

Paper Details

Date Published: 15 November 2018
PDF: 8 pages
Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 1096466 (15 November 2018); doi: 10.1117/12.2506496
Show Author Affiliations
Taoran Zhang, Yanshan Univ. (China)
Fei Bian, Yanshan Univ. (China)
Xiaoguang Jia, Yanshan Univ. (China)
Chenbo Wang, Yanshan Univ. (China)
Jian Wang, Yanshan Univ. (China)
Haiyan Wang, Yanshan Univ. (China)
Zhaopeng Xu, Yanshan Univ. (China)

Published in SPIE Proceedings Vol. 10964:
Tenth International Conference on Information Optics and Photonics
Yidong Huang, Editor(s)

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