Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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The Effect of Metal Back-reflective Layers on the Performance of Transfer Printed GaAs Solar Cells

금속 후면 반사막이 GaAs 태양전지의 효율에 미치는 영향

  • Choi, Wonjung (School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University) ;
  • Kim, Chang Zoo (Korea Advanced Nano Fab Center) ;
  • Kang, Ho Kwan (Korea Advanced Nano Fab Center) ;
  • Jo, Sungjin (School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University)
  • 최원정 (경북대학교, 건설환경에너지공학부) ;
  • 김창주 (한국나노기술원) ;
  • 강호관 (한국나노기술원) ;
  • 조성진 (경북대학교, 건설환경에너지공학부)
  • Received : 2014.05.26
  • Accepted : 2014.06.02
  • Published : 2014.06.30
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Abstract

To investigate the effect of metal back-reflective layers (MBLs) on the performance of GaAs solar cells, we fabricated GaAs solar cells on Al and Ag metal layers using the transfer printing technique. We also investigated the effect of MBL texturing on the performance of transfer printed GaAs solar cells. Transfer printed solar cells with MBLs exhibited improved photovoltaic performance compared to solar cells without MBLs due to light trapping. We demonstrated GaAs solar cells with MBLs on a flexible substrate and performed systematic bending tests. All the measured characteristics of solar cells showed little change in performance.

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