Halogen-containing ultrathin 2D MOF nanosheets for enhanced stability and efficiency in perovskite solar cells
Научная публикация
| Журнал |
Journal of Energy Chemistry
ISSN: 2096-885X
|
| Вых. Данные |
Год: 2026,
Том: 115,
Страницы: 121-128
Страниц
: 8
DOI:
10.1016/j.jechem.2025.11.020
|
| Авторы |
Wang Wei
1,2
,
Wang Jiaqi
3
,
Zhang Jian
2
,
Lin Kaifeng
2
,
Hu Boyuan
2
,
Zhang Xingrui
2
,
Dong Yayu
2
,
Xia Debin
2
,
Tretyakov Evgeny
4
,
Yang Yulin
2
|
| Организации |
| 1 |
College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001 Henan, China
|
| 2 |
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001 Heilongjiang, China
|
| 3 |
College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001 Henan, China
|
| 4 |
N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Av. 47, Moscow 119991, Russia
|
|
Информация о финансировании (1)
Morphological imperfections and phase segregation at the buried perovskite interface have posed significant challenges to further enhancing the efficiency of perovskite solar cells (PSCs). In this work, a halogen-functionalized porphyrin-based metal–organic framework (MOF) nanosheet, Cu-TCPP(I), is introduced as a multifunctional buffer layer at the SnO2/perovskite interface. The Cu-TCPP(I) nanosheets effectively passivate interfacial defects, regulate crystallization kinetics, and stabilize the photoactive α-phase perovskite against undesirable transition to the δ-phase. This interfacial engineering strategy enhances charge extraction efficiency and suppresses non-radiative recombination, enabling devices to achieve a champion power conversion efficiency (PCE) of 24.62 % with negligible hysteresis. The optimized devices retain 92 % of their initial PCE after 1600 h of storage under ambient conditions, demonstrating excellent operational stability. Importantly, the Cu-TCPP(I) interlayer exhibits strong lead-chelating capability, significantly reducing the risk of lead leakage. This multifunctional interfacial design presents a promising route toward high-efficiency, stable, and environmentally friendly PSCs for large-scale photovoltaic applications.