| 학회 |
한국재료학회 |
| 학술대회 |
2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 |
27권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
태양전지 내 수소 분포에 따른 열화 정도를 통한 메커니즘 분석 |
| 초록 |
Light injection to solar cell can generates the electron hole pairs but degrades the cell performance at the same time. It is called the light induced degradation(LID) that reduces about 10% efficiency during several hours. Many researcher have developed for LID mitigation method changing the dopant and annealing in the dark since decades. But recently light and elevated temperature induced degradation(LeTID) can deteriorates the cell in other way. Trigger of this degradation is hydrogen diffused through the hydrogenation but the mechanism is until unknown precisely. Unlike LID, this degradation occurs any wafer not to be dependent the base impurity as dopant, iron, nickel. In this study, we proposed the different hydrogenation and decreased the maximum defect concentration. Therefore not just the quantity of diffused hydrogen but distribution and the difference of 'hydrogen effect' is focused by proposed hydrogenation. And the relation of LeTID and hydrogen location is illustrated by log scale plot and its linearity is over 0.8 surprisingly. This experiment can give the insight of the mechanism of LeTID and idea for reducing defect density. |
| 저자 |
심명섭1, 최동진1, 정유진2, 박현정2, 강윤묵3, 김동환1, 이해석3
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| 소속 |
1고려대, 2에너지기술공동(연), 3KU-KIST 에너지환경대 |
| 키워드 |
<P>태양전지; 실리콘; 열화; 수소; LeTID</P>
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| E-Mail |
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