| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Voc enhancement of perovskite solar cells based on dipole-induced energy level tuning effect |
| 초록 |
The surface treatment of three-dimensional perovskites with phenethylamine (PEA) halides (X) that form two-dimensional (2D) perovskites has become popular for improvement in overall power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs), resulting from a phenomenon often referred to as surface passivation, where PEAX is in direct contact with perovskite and the hole transport layer (HTL).However, we observed that the effects of using PEAX in PSCs are also pronounced even though the it is not in direct contact either with bottom layers (perovskites) or top layers (HTLs).In fact, the best PCE, over 22%, was obtained for the cells in which PEAX is not in contact with HTLs by poly(methylmethacryalte) (PMMA). We propose PEAX acts as dipoles, aligned between perovskite and HTL, to cause the shift in energy levels. |
| 저자 |
오은서, 김현지, 김진영, 조영서, 전기현, 김규민
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| 소속 |
한경대 |
| 키워드 |
Perovskite solar cells; hole transport layers; dipole-moment
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| E-Mail |
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