Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Texturing of Two Adhered Wafers for High Efficiency Crystalline Silicon Solar Cells

웨이퍼 접착 텍스쳐링을 이용한 결정질 실리콘 태양전지 고효율화 연구

  • Lim, Hyoung-Rae (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Joo, Gwang-Sik (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Roh, Si-Cheol (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Choi, Jeong-Ho (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Jung, Jong-Dae (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Seo, Hwa-Il (Dept. of Electrical & Electronic & Communication Engineering, Korea University of Technology and Education)
  • 임형래 (한국기술교육대학교 전기.전자.통신공학과) ;
  • 주광식 (한국기술교육대학교 전기.전자.통신공학과) ;
  • 노시철 (한국기술교육대학교 전기.전자.통신공학과) ;
  • 최정호 (한국기술교육대학교 전기.전자.통신공학과) ;
  • 정종대 (한국기술교육대학교 전기.전자.통신공학과) ;
  • 서화일 (한국기술교육대학교 전기.전자.통신공학과)
  • Received : 2014.08.27
  • Accepted : 2014.09.22
  • Published : 2014.09.30
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Abstract

The texturing is one of the most important processes for high efficiency crystalline silicon solar cells. The rear side flatness of silicon solar cell is very important for increasing the light reflectance and forming uniform back surface field(BSF) region in manufacturing high efficiency crystalline silicon solar cells. We investigated texturing difference between front and rear side of wafer by texturing of two adhered wafers. As a result, the flatter rear side was obtained by forming less pyramid size compared to the front side and improved reflectance of long wavelength and back surface field(BSF) region were also achieved. Therefore, the texturing of two adhered wafers can be expected to improve the efficiency of silicon solar cells due to increased short circuit current(Isc).

Keywords

References

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