상세 보기
- Shin, Yun Seop;
- Song, Ji Won;
- Lee, Dong Gyu;
- Lee, Jaehwi;
- Seo, Jongdeuk;
- ... Kim, Gi-Hwan;
- 외 18명
WEB OF SCIENCE
26SCOPUS
26초록
In conventional n-i-p perovskite solar cells, unsolved issues persist, particularly concerning notorious performance degradation under prolonged heat exposure at 85°C. By reducing the concentration of 4-tert-butylpyridine (tBP) and lithium bis(trifluoromethanesulfonyl)imide and adjusting their molar ratio to one, we achieved a dramatic increase in the heat stability of the PSC while boosting its power conversion efficiency (PCE). The formation of a 1:1 Li+-tBP complex was crucial for preventing free tBP molecules in the hole-transporting layer (HTL), suppressing the de-doping of the p-type HTL by tBP and the release of tBP vapor under heat stress. Consequently, the PSCs accomplished a PCE of 26.18% (certified 26.00%) while demonstrating remarkable resilience to heat exposure at 85°C due to the raised glass transition temperature of the HTL. Furthermore, a perovskite solar mini-module with an aperture area of 25 cm2 achieved a PCE of 23.29%, highlighting their potential for commercial PSC deployment. © 2024 Elsevier Inc.
키워드
- 제목
- De-doping engineering for efficient and heat-stable perovskite solar cells
- 저자
- Shin, Yun Seop; Song, Ji Won; Lee, Dong Gyu; Lee, Jaehwi; Seo, Jongdeuk; Roe, Jina; Shin, Gwang Yong; Kim, Dongshin; Yeop, Jiwoo; Lee, Dongmin; Kim, Minjin; Jo, Yimhyun; Jang, Hyungsu; Son, Jung Geon; Lee, Woojin; Son, Jeongmin; Park, Sujung; Cho, Shinuk; Shin, Tae Joo; Kim, Gi-Hwan; Kim, Jin Young; Lee, Tae Kyung; Grätzel, Michael; Kim, Dong Suk
- 발행일
- 2025-01
- 유형
- Article
- 저널명
- Joule
- 권
- 9
- 호
- 1