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Optical enhancement and losses of pyramid textured thin-film silicon solar cells

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Author

  • Rahul Dewan
  • Ivaylo Vasilev
  • Vladislav Jovanov
  • Dietmar Knipp

Summary, in English

The optical enhancement and losses of microcrystalline thin-film silicon solar cells with periodic pyramid textures were investigated. Using a finite difference time domain algorithm, the optical wave propagation in the solar cell structure was calculated by rigorously solving the Maxwell’s equations. The influence of the profile dimensions (the period and height of the pyramid) and solar cell thickness on the quantum efficiency and short circuit current were analyzed. Furthermore, the influence of the solar cell thickness on the upper limit of the short circuit current was investigated. The numerically simulated short circuit currents were compared to fundamental light trapping limits based on geometric optics. Finally, optical losses in the solar cell were analyzed. After identifying these key losses, strategies for minimizing the losses can be discussed.

Publishing year

2011

Language

English

Publication/Series

Applied Physics Reviews

Volume

110

Issue

1

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 1931-9401