Step-efficient access to new starburst hole-transport materials with carbazole end-groups for perovskite solar cells via direct C–H/C–Br coupling reactions

New starburst small molecules bearing carbazole end-groups are step-economically synthesized in good isolated yields (70–84%) by sequential C–H activation/arylation reactions. Perovskite solar cells employing these molecules ( YC05–08 ) as hole-transporting materials (HTMs) display a promising power...

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Bibliographic Details
Published in:Materials chemistry frontiers 2019-10, Vol.3 (10), p.2041-2045
Main Authors: Chang, Yu-Chieh, Lee, Kun-Mu, Ting, Chang-Chieh, Liu, Ching-Yuan
Format: Article
Language:English
Subjects:
Carbazoles
Chemical reactions
Chemical synthesis
Coupling (molecular)
Energy conversion efficiency
NMR
Nuclear magnetic resonance
Perovskites
Photovoltaic cells
Solar cells
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Summary:New starburst small molecules bearing carbazole end-groups are step-economically synthesized in good isolated yields (70–84%) by sequential C–H activation/arylation reactions. Perovskite solar cells employing these molecules ( YC05–08 ) as hole-transporting materials (HTMs) display a promising power conversion efficiency of up to 17.4%.
ISSN:2052-1537
2052-1537
DOI:10.1039/C9QM00309F