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Issue 7, 2016
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Solution processed graphene structures for perovskite solar cells

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Abstract

Organometallic trihalide perovskite light absorber based solar cells have drawn increasing attention because of their recent rapid increase in power conversion efficiency (PCE). These photovoltaic cells have relied significantly on transparent conducting oxide (TCO) electrodes which are costly and brittle. Herein, solution processed transparent conductive graphene films (TCGFs) are utilized, for the first time, as an alternative to traditional TCO electrodes at the electron collecting layer in perovskite solar cells (PSCs). By investigating and optimizing the trade-off between transparency and sheet resistance (Rs) of the graphene films, a PCE of 0.62% is achieved. This PCE is further improved to 0.81% by incorporating graphene structures into both compact and mesoporous TiO2 layers of the solar cell. We anticipate that the present study will lead to further work to develop graphene-based transparent conductive electrodes for future solar cell devices.

Graphical abstract: Solution processed graphene structures for perovskite solar cells

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Publication details

The article was received on 07 Nov 2015, accepted on 22 Jan 2016 and first published on 25 Jan 2016


Article type: Paper
DOI: 10.1039/C5TA08996D
Citation: J. Mater. Chem. A, 2016,4, 2605-2616
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    Solution processed graphene structures for perovskite solar cells

    M. Batmunkh, C. J. Shearer, M. J. Biggs and J. G. Shapter, J. Mater. Chem. A, 2016, 4, 2605
    DOI: 10.1039/C5TA08996D

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