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2019 Vol.39, Issue 1

Research Article

Study of Light-induced Degradation in Thin Film Silicon Solar Cells: Hydrogenated Amorphous Silicon Solar Cell and Nano-quantum Dot Silicon Thin Film Solar Cell

박막 실리콘 태양전지의 광열화현상 연구: 비정질 실리콘 태양전지 및 나노양자점 실리콘 박막 태양전지

Ka-Hyun Kim1*
김 가현1*
1Division of Energy & Optical Technology Convergence, Cheongju University, Professor
1청주대학교 에너지광기술융합학부, 조교수
*Corresponding Author 
28 February 2019. pp. 1-9
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Abstract

Light induced degradation is one of the major research challenges of hydrogenated amorphous silicon related thin film silicon solar cells. Amorphous silicon shows creation of metastable defect states, originating from elevated concentration of dangling bonds during light exposure. The metastable defect states work as recombination centers, and mostly affects quality of intrinsic layer in solar cells. In this paper we present results of light induced degradation in thin film silicon solar cells and discussion on physical origin, mechanism and practical solutions of light induced degradation in thin film silicon solar cells. In-situ light-soaking IV measurement techniques are presented. We also present thin film silicon material with silicon nano-quantum dots embedded within amorphous matrix, which shows superior stability during light-soaking. Our results suggest that solar cell using silicon nano-quantum dots in abosrber layer shows superior stability under light soaking, compared to the conventional amorphous silicon solar cell.

Keywords
hydrogenated amorphous silicon
thin film silicon solar cells
nano-quantum dot silicon thin film solar cell
light-induced degradation

키워드
수소화된 비정질 실리콘
박막 실리콘 태양전지
나노양자점 실리콘 박막 태양전지
광열화현상
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Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 39
  • No :1
  • Pages :1-9
  • Received Date : 2019-01-17
  • Revised Date : 2019-01-28
  • Accepted Date : 2019-01-29
  • DOI :https://doi.org/10.7836/kses.2019.39.1.001
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