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Planar versus triptycenylene end-capped aroyleneimidazoles as electron acceptors in organic photovoltaics

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Abstract

The effect of triptycenylene end-groups on the optoelectronic properties of aroyleneimidazoles and their performance as acceptors in bulk heterojunction photovoltaic devices are described. We compare three derivatives of triptycene monoaroyleneimidazoles with their planar analogues. Planar aroyleneimidazoles show rather poor performance as acceptors with power conversion efficiencies (PCEs) of ∼0.3–1.3%. In contrast, the triptycene end-capped congeners show improved performance with a maximum PCE of 2.3%, demonstrating the potential of triptycene-based π-systems for application as non-fullerene electron acceptors.

Graphical abstract: Planar versus triptycenylene end-capped aroyleneimidazoles as electron acceptors in organic photovoltaics

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Publication details

The article was received on 20 Jan 2017, accepted on 03 Apr 2017 and first published on 04 Apr 2017


Article type: Research Article
DOI: 10.1039/C7QO00231A
Citation: Org. Chem. Front., 2017, Advance Article
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    Planar versus triptycenylene end-capped aroyleneimidazoles as electron acceptors in organic photovoltaics

    E. H. Menke, D. Leibold, A. P. Ullrich, Y. Vaynzof and M. Mastalerz, Org. Chem. Front., 2017, Advance Article , DOI: 10.1039/C7QO00231A

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