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Hydrazinium-assisted stabilisation of methylammonium tin iodide for lead-free perovskite solar cells

Abstract

Here we explored the effect of partial substitution of univalent methylammonium cations (MA) with hydrazinium ions (HA) on the stability, morphology and photovoltaic performance of hybrid MA(1-x)HAxSnI3 systems. The hydrazinium-loaded films have shown much superior stability with respect to light exposure under inert atmosphere as compared to the reference MASnI3 films, which undergo rapid conversion to MA2SnI6 under these conditions. Furthermore, the incorporation of hydrazinium ions dramatically improved the photovoltaic performance of the materials yielding maximum efficiency of 2.6% in inverted planar junction perovskite solar cells using the optimal HA0.2MA0.8SnI3 composition.

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Publication details

The article was received on 08 Aug 2018, accepted on 05 Oct 2018 and first published on 11 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA07699E
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Hydrazinium-assisted stabilisation of methylammonium tin iodide for lead-free perovskite solar cells

    S. Tsarev, A. G. Boldyreva, S. Yu. Luchkin, M. Elshobaki, M. I. Afanasov, K. J. Stevenson and P. A. Troshin, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA07699E

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