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Suppressing generation of iodine impurity via an amidine additive in perovskite solar cells

Abstract

I− is prone to be oxidized to form I2 due to its low redox potential in the perovskite solar cells. The generated I2 has been proved detrimental to the device performance. Herein, an amidine DBU is first introduced as an additive into the precursor of the perovskite layer. The reductive DBU could suppress the formation of iodine impurity, resulting a high purity perovskite polycrystalline film. The efficiency and stability of the perovskite solar cells were thus improved.

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Publication details

The article was received on 23 Mar 2018, accepted on 05 Apr 2018 and first published on 05 Apr 2018


Article type: Communication
DOI: 10.1039/C8CC02329H
Citation: Chem. Commun., 2018, Accepted Manuscript
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    Suppressing generation of iodine impurity via an amidine additive in perovskite solar cells

    L. Hu, T. Liu, L. Sun, S. Xiong, F. Qin, X. Jiang, Y. Jiang and Y. Zhou, Chem. Commun., 2018, Accepted Manuscript , DOI: 10.1039/C8CC02329H

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