Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Light Trapping in Silicon Based Tandem Solar Cell: A Brief Review

  • Iftiquar, Sk Md (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Park, Hyeongsik (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Dao, Vinh Ai (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Pham, Duy Phong (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Yi, Junsin (College of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2015.12.24
  • Accepted : 2016.01.04
  • Published : 2016.03.31
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Abstract

Among the various types of solar cells, silicon based two terminal tandem solar cell is one of the most popular one. It is designed to split the absorption of incident AM1.5 solar radiation among two of its component cells, thereby widening the wavelength range of external quantum efficiency (EQE) spectra of the device, in comparison to that of a single junction solar cell. In order to improve the EQE spectra further and raise short circuit current density ($J_{sc}$) an optimization of the tradeoff between the top and bottom cell is needed. In an optimized cell structure, the $J_{sc}$ and hence efficiency of the device can further be enhanced with the help of light trapping scheme. This can be achieved by texturing front and back surface as well as a back reflector of the device. In this brief review we highlight the development of light trapping in the silicon based tandem solar cell.

Keywords

References

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