Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Industry Applicable Future Texturing Process for Diamond wire sawed Multi-crystalline Silicon Solar Cells: A review

  • Ju, Minkyu (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Youn-Jung (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Balaji, Nagarajan (Department of Energy Science, Sungkyunkwan University) ;
  • Cho, Young Hyun (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Yi, Junsin (College of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2018.02.02
  • Accepted : 2018.03.21
  • Published : 2018.03.31
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Abstract

Current major photovoltaic (PV) market share (> 60%) is being occupied by the multicrystalline (mc)-silicon solar cells despite of low efficiency compared to single crystalline silicon solar cells. The diamond wire sawing technology reduces the production cost of crystalline silicon solar cells, it increases the optical loss for the existing mc-silicon solar cells and hence its efficiency is low in the current mass production line. To overcome the optical loss in the mc-crystalline silicon, caused by the diamond wire sawing, next generation texturing process is being investigated by various research groups for the PV industry. In this review, the limitation of surface structure and optical loss due to the reflectivity of conventional mc-silicon solar cells are explained by the typical texturing mechanism. Various texturing technologies that could minimize the optical loss of mc-silicon solar cells are explained. Finally, next generation texturing technology to survive in the fierce cost competition of photovoltaic market is discussed.

Keywords

References

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