Self-assembled hole-transporting material constructed by chlorination and conjugation strategies toward efficient organic solar cells
Literature Information
Publication Date
2023-12-06
DOI
10.1039/D3CC04863B
Impact Factor
6.222
Authors
Xinjie Zhou, Renyong Geng, Shanlei Xu, Xingting Liu, Yahui Yang, Shengzheng Gao, Hao Xu, Weiguo Zhu
View Original
Abstract
The moderate charge-transporting capability together with higher-lying energetic levels of self-assembling hole-transporting materials (SAMs) constrain the productive carrier extraction dynamics. To alleviate this issue, a synergetic chlorination and extended conjugation strategy is applied to explore a novel HTL, named 2Cl-TPA-CN-COOH. Indeed, the chlorinated head backbone would deepen the energetic level and strengthen the intramolecular push–pull effect, whereas the elongated conjugation unit would boost the carrier-transporting potential. Consequently, a champion power conversion efficiency (PCE) of 18.6% with upgraded stability is obtained in a 2Cl-TPA-CN-COOH cell. These results demonstrate a new insight of the molecular configuration of SAMs, which would contribute to the enhancements of performance and reliability in the OSC field.
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Chemical Communications
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1-Isobutyl-7-methoxy-2,3,4,9-tetrahydro-1H-beta-carboline
CAS Number:
175975-76-5
Molecular Formula:
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