한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제30권2호
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  • Pages.115-118
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  • 2017
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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적층형 태양전지를 위한 비정질실리콘계 산화막 박막태양전지의 광흡수층 및 반사체 성능 향상 기술

Advances in Absorbers and Reflectors of Amorphous Silicon Oxide Thin Film Solar Cells for Tandem Devices

  • 강동원 (청주대학교 태양광에너지공학과)
  • Kang, Dong-Won (Department of Solar & Energy Engineering, Cheongju University)
  • 투고 : 2016.12.12
  • 심사 : 2016.12.29
  • 발행 : 2017.02.01
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초록

Highly photosensitive and wide bandgap amorphous silicon oxide (a-$SiO_x$:H) films were developed at low temperature ranges ($100{\sim}150^{\circ}C$) with employing plasma-enhanced chemical vapor deposition by optimizing $H_2/SiH_4$ gas ratio and $CO_2$ flow. Photosensitivity more than $10^5$ and wide bandgap (1.81~1.85 eV) properties were used for making the a-$SiO_x$:H thin film solar cells, which exhibited a high open circuit voltage of 0.987 V at the substrate temperature of $100^{\circ}C$. In addition, a power conversion efficiency of 6.87% for the cell could be improved up to 7.77% by employing a new n-type nc-$SiO_x$:H/ZnO:Al/Ag triple back-reflector that offers better short circuit currents in the thin film photovoltaic devices.

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참고문헌

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