| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
The Influence of Surfactants on Perovskite Precursor Solution and Photovoltaic Performance |
| 초록 |
Perovskite solar cells (PSCs) unique optoelectronics properties, reaching over 25% power conversion efficiencies (PCEs) with relatively cost-effective solution process. These solution fabrication methods form perovskite polycrystalline, which is inevitably accompanied by defects. These defects cause a critical problem of reducing photovoltaic properties in low-light condition. To passivate defects, quaternary ammonium halides (QAHs) with a structure of NR4+X- can efficiently passivate positive and negative charged defects in perovskite film. In perovskite precursor solution adding QAHs, the perovskite colloidal size was reduced and colloidal stability was improved, result to uniform film formation and enhanced perovskite crystal quality. As a result, perovskite solar cell with QAHs exhibits reduced defect density and enhanced photovoltaic performance in low-light illumination. |
| 저자 |
전경국1, 윤상은1, 신소정1, 최민준1, 박노창2, 김종현1, 김진철2
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| 소속 |
1아주대, 2한국전자기술(연) |
| 키워드 |
perovskite solar cell; defect passivation; low light
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| E-Mail |
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