Permeable Modification and Near‐Infrared Absorption of n‐Type Non‐Fullerene Acceptors for High‐Performance Perovskite Solar Cells DOI

Yunuo Hui,

Xiong Chang,

Haorui Tang

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: June 4, 2025

As the foremost electron transport material in inverted perovskite solar cells, phenyl‐C61‐butyric acid methyl ester (PCBM) is constrained by its inadequate electrical properties and defect passivation capability to fabricate devices with better performance. Herein, a non‐fullerene acceptor molecule eC9‐2Cl introduced into PCBM, which simultaneously passivates defects distributed on surface, enhances of provides additional near‐infrared absorption. The strategic incorporation optimizes band alignment increases mobility. Furthermore, electron‐deficient thiophene carbonyl moieties effectively passivate uncoordinated Pb 2+ defects. eC9‐2Cl‐doped PCBM showed an increased open‐circuit voltage ( V OC ) 1.12 V, attaining champion power conversion efficiency (PCE) 24.40% narrow distribution. Moreover, modified demonstrate exceptional retention 96% initial PCE after storing under ambient air for over 1800 h. This can be attributed enhanced uniformity, passivation, augmented hydrophobicity introduction.

Language: Английский

Low-Temperature Purification of Intermediate Phases for Enhanced Stability and Efficiency in FAPbI3 Solar Cells DOI
Qin Gao, Can Wang, Yi Pan

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110945 - 110945

Published: March 1, 2025

Language: Английский

Citations

0
Permeable Modification and Near‐Infrared Absorption of n‐Type Non‐Fullerene Acceptors for High‐Performance Perovskite Solar Cells DOI

Yunuo Hui,

Xiong Chang,

Haorui Tang

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: June 4, 2025

As the foremost electron transport material in inverted perovskite solar cells, phenyl‐C61‐butyric acid methyl ester (PCBM) is constrained by its inadequate electrical properties and defect passivation capability to fabricate devices with better performance. Herein, a non‐fullerene acceptor molecule eC9‐2Cl introduced into PCBM, which simultaneously passivates defects distributed on surface, enhances of provides additional near‐infrared absorption. The strategic incorporation optimizes band alignment increases mobility. Furthermore, electron‐deficient thiophene carbonyl moieties effectively passivate uncoordinated Pb 2+ defects. eC9‐2Cl‐doped PCBM showed an increased open‐circuit voltage ( V OC ) 1.12 V, attaining champion power conversion efficiency (PCE) 24.40% narrow distribution. Moreover, modified demonstrate exceptional retention 96% initial PCE after storing under ambient air for over 1800 h. This can be attributed enhanced uniformity, passivation, augmented hydrophobicity introduction.

Language: Английский

Citations

0