Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Influence of Inverted Pyramidal Surface on Crystalline Silicon Solar Cells

결정질 실리콘 태양전지 표면 역 피라미드 구조의 특성 분석

  • Yang, Jeewoong (Department of Material science and Engineering, Korea University) ;
  • Bae, Soohyun (Department of Material science and Engineering, Korea University) ;
  • Park, Se Jin (Department of Material science and Engineering, Korea University) ;
  • Hyun, Ji Yeon (Department of Material science and Engineering, Korea University) ;
  • Kang, Yoonmook (KU-KIST Green School Graduate School of Energy and Environment, Korea University) ;
  • Lee, Hae-Seok (KU-KIST Green School Graduate School of Energy and Environment, Korea University) ;
  • Kim, Donghwan (Department of Material science and Engineering, Korea University)
  • 양지웅 (신소재공학과, 고려대학교) ;
  • 배수현 (신소재공학과, 고려대학교) ;
  • 박세진 (신소재공학과, 고려대학교) ;
  • 현지연 (신소재공학과, 고려대학교) ;
  • 강윤묵 (그린스쿨대학원, 고려대학교) ;
  • 이해석 (그린스쿨대학원, 고려대학교) ;
  • 김동환 (신소재공학과, 고려대학교)
  • Received : 2018.07.23
  • Accepted : 2018.08.10
  • Published : 2018.09.30
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Abstract

To generate more current in crystalline silicon solar cells, surface texturing is adopted by reducing the surface reflection. Conventionally, random pyramid texturing by the wet chemical process is used for surface texturing in crystalline silicon solar cell. To achieve higher efficiency of solar cells, well ordered inverted pyramid texturing was introduced. Although its complicated process, superior properties such as lower reflectance and recombination velocity can be achieved by optimizing the process. In this study, we investigated optical and passivation properties of inverted pyramid texture. Lifetime, implied-Voc and reflectance were measured with different width and size of the texture. Also, effects of chemical rounding at the valley of the pyramid were observed.

Keywords

References

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