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The synthesis, structure, and properties of 5,6,11,12-tetraarylindeno[1,2-b]fluorenes and their applications as donors for organic photovoltaic devices

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Abstract

The synthesis, structure, and properties of three new 5,6,11,12-tetraarylindeno[1,2-b]fluorenes are reported. The highly twisted conformations between an indeno[1,2-b]fluorene core and peripheral aryl substitutions endow these indeno[1,2-b]fluorene derivatives with good photostability for use as electron donors for vacuum-deposited photovoltaic devices. The optimized device based on a TAInF2 donor blended with C70 as an electron acceptor produces a high open-circuit voltage (>0.9 V) and a power conversion efficiency of 2.91%. This work demonstrates the first application of an indenofluorene derivative as an electron donor in organic solar cells.

Graphical abstract: The synthesis, structure, and properties of 5,6,11,12-tetraarylindeno[1,2-b]fluorenes and their applications as donors for organic photovoltaic devices

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Publication details

The article was received on 01 Nov 2016, accepted on 30 Nov 2016 and first published on 01 Dec 2016


Article type: Research Article
DOI: 10.1039/C6QO00673F
Citation: Org. Chem. Front., 2017, Advance Article
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    The synthesis, structure, and properties of 5,6,11,12-tetraarylindeno[1,2-b]fluorenes and their applications as donors for organic photovoltaic devices

    Y. Lo, H. Ting, Y. Li, Y. Li, S. Liu, K. Huang and K. Wong, Org. Chem. Front., 2017, Advance Article , DOI: 10.1039/C6QO00673F

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