Investigation of isomerization effects on the photovoltaic performance of fused-ring electron acceptors via side-chain position manipulation

Three FREA isomers, IUIC-in, IUIC-mid and IUIC-out, were developed to investigate the effects of side-chain position on molecular properties and photovoltaic performance. Among them, IUIC-mid based devices exhibit the lowest trap density and finest phase separation, contributing to the highest mobil...

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Veröffentlicht in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2023-02, Vol.11 (6), p.2063-2068
Hauptverfasser: Wang, Ke, He, Dan, Jiang, Li, Wang, Chunru, Zhao, Fuwen
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container_title Journal of materials chemistry. C, Materials for optical and electronic devices
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creator Wang, Ke
He, Dan
Jiang, Li
Wang, Chunru
Zhao, Fuwen
description Three FREA isomers, IUIC-in, IUIC-mid and IUIC-out, were developed to investigate the effects of side-chain position on molecular properties and photovoltaic performance. Among them, IUIC-mid based devices exhibit the lowest trap density and finest phase separation, contributing to the highest mobilities, weakest charge recombination and most efficient exciton dissociation. Therefore, the IUIC-mid based OSC gains the highest PCE of 13.1%.
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source Royal Society Of Chemistry Journals 2008-
subjects Chains
Excitons
Isomerization
Molecular chains
Phase separation
title Investigation of isomerization effects on the photovoltaic performance of fused-ring electron acceptors via side-chain position manipulation
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