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Issue 4, 2020
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Molecular engineering of simple carbazole-arylamine hole-transport materials for perovskite solar cells

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Abstract

We report synthesis and characterization of novel hole-transport materials (HTMs) with substituents, methylsulfonyl, N,N-dimethylamino or methoxy groups, introduced onto the N of the carbazole unit of carbazole-arylamine and their application in perovskite solar cells (PSCs). We found that the new HTMs with a N,N-dimethylamino substituent exhibit superior hole extraction ability despite lower carrier mobility than that of methylsulfonyl and methoxy counterparts. After careful optimization of HTM concentration and deposition conditions, the PSCs using pristine and doped N,N-dimethylamino-based HTMs show a promising efficiency of 16.12% and 19.25%, respectively. Our findings unravel the influence of functional groups on power conversion efficiency of perovskite solar cells.

Graphical abstract: Molecular engineering of simple carbazole-arylamine hole-transport materials for perovskite solar cells

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Article information


Submitted
15 Dec 2019
Accepted
17 Jan 2020
First published
17 Jan 2020

Sustainable Energy Fuels, 2020,4, 1875-1882
Article type
Paper

Molecular engineering of simple carbazole-arylamine hole-transport materials for perovskite solar cells

X. Liu, S. Ma, M. Mateen, P. Shi, C. Liu, Y. Ding, M. Cai, M. Guli, M. K. Nazeeruddin and S. Dai, Sustainable Energy Fuels, 2020, 4, 1875
DOI: 10.1039/C9SE01242G

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