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Synthesis and photovoltaic properties of carbazole-substituted fullerene derivatives

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Abstract

Two carbazole-substituted fullerene derivatives containing mono- and bi-C60 units, (9-butyl-9H-carbazole-3-yl)-C61-butyric acid methyl ester (Cz-C60) and (9-butyl-9H-carbazole-3,6-diyl)-bis(C61-butyric acid methyl ester) (Cz-2C60), were successfully synthesized and characterized by NMR, MS and FT-IR spectroscopy. The photophysical, electrochemical properties and thermal stabilities of the fullerene derivatives were systematically investigated. P3HT-based organic photovoltaic devices were fabricated using Cz-C60 and Cz-2C60 as electron acceptors. The highest power conversion efficiencies (PCEs) of the devices fabricated with Cz-C60 and Cz-2C60 were 3.88 and 3.59%, respectively.

Graphical abstract: Synthesis and photovoltaic properties of carbazole-substituted fullerene derivatives

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Publication details

The article was received on 10 Feb 2017, accepted on 02 May 2017 and first published on 05 May 2017


Article type: Paper
DOI: 10.1039/C7NJ00485K
Citation: New J. Chem., 2017, Advance Article
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    Synthesis and photovoltaic properties of carbazole-substituted fullerene derivatives

    Y. Zhao, X. Wang, T. Yu, H. Zhang, C. Wei and X. Liu, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ00485K

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