New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Light Induced Degradation in Crystalline Si Solar Cells

결정질 실리콘 태양전지의 광열화 현상

  • Tark, Sung-Ju (Department of Materials Science and Engineering, Korea University) ;
  • Kim, Young-Do (Department of Materials Science and Engineering, Korea University) ;
  • Kim, Soo-Min (Department of Materials Science and Engineering, Korea University) ;
  • Park, Sung-Eun (Department of Materials Science and Engineering, Korea University) ;
  • Kim, Dong-Hwan (Department of Materials Science and Engineering, Korea University)
  • Received : 2012.03.26
  • Accepted : 2012.03.29
  • Published : 2012.03.25
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Abstract

The main issue of boron doped p-type czochralski-grown silicon solar cells is the degradation when they are exposed to light or minority carriers injection. This is due to the meta-stable defect such as boron-oxygen in the Cz-Si material. Although a clear explanation is still researching, recent investigations have revealed that the Cz-Si defect is related with the boron and the oxygen concentration. They also revealed how these defects act a recombination centers in solar cells using density function theory (DFT) calculation. This paper reviews the physical understanding and gives an overview of the degradation models. Therefore, various methods for avoiding the light-induced degradation in Cz-Si solar cells are compared in this paper.

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References

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