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Reduction of intrinsic defects in hybrid perovskite films via precursor purification

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Abstract

A simple chemical process was developed in a scalable manner, to reduce trap states in perovskite absorbers from the very beginning. The obvious decrease of I2 in methylammonium iodide and the decrease of trap density in the resultant films were identified, which led to the power conversion efficiency (PCE) of perovskite solar cells (PSCs) increase from 16.5% to 18.5%.

Graphical abstract: Reduction of intrinsic defects in hybrid perovskite films via precursor purification

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Publication details

The article was received on 19 Jul 2017, accepted on 30 Aug 2017 and first published on 31 Aug 2017


Article type: Communication
DOI: 10.1039/C7CC05590K
Citation: Chem. Commun., 2017, Advance Article
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    Reduction of intrinsic defects in hybrid perovskite films via precursor purification

    D. Zhang, B. Cui, C. Zhou, L. Li, Y. Chen, N. Zhou, Z. Xu, Y. Li, H. Zhou and Q. Chen, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC05590K

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