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Temperature-assisted rapid nucleation: a facile method to optimize the film morphology for perovskite solar cells

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Abstract

The nucleation stage has an important influence on the lead halide perovskite film morphology, and therefore the solar cell performance. Here, we introduce a facile temperature-assisted rapid nucleation (TRN) method to improve the film crystallization process and the film morphology. By employing low temperature anti-solvents (diethyl ether, chlorobenzene and toluene), we stimulate homogeneous nuclei growth, resulting in a highly dense perovskite thin layer. The TRN method prepared (FAPbI3)0.85(MAPbBr3)0.15 devices exhibit a power conversion efficiency up to 19.2% and maintain over 85% of the original efficiency after 40 days of storage at room temperature under a relative humidity of 10–40%.

Graphical abstract: Temperature-assisted rapid nucleation: a facile method to optimize the film morphology for perovskite solar cells

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Publication details

The article was received on 19 Jul 2017, accepted on 21 Aug 2017 and first published on 21 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA06334B
Citation: J. Mater. Chem. A, 2017, Advance Article
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    Temperature-assisted rapid nucleation: a facile method to optimize the film morphology for perovskite solar cells

    Y. Ren, X. Ding, Y. Wu, J. Zhu, T. Hayat, A. Alsaedi, Y. Xu, Z. Li, S. Yang and S. Dai, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA06334B

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