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Issue 37, 2018
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Suppressing generation of iodine impurity via an amidine additive in perovskite solar cells

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Abstract

In perovskite solar cells, I tends to oxidize to I2 due to its low redox potential. The generated I2 has been proved to be detrimental to device performance. Herein, for the first time, an amidine DBU is introduced as an additive into the precursor of the perovskite layer. The reductive DBU can suppress the formation of iodine impurity, resulting in a highly pure perovskite polycrystalline film. The efficiency and stability of the perovskite solar cells are thus improved.

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

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Article information


Submitted
23 Mar 2018
Accepted
05 Apr 2018
First published
05 Apr 2018

Chem. Commun., 2018,54, 4704-4707
Article type
Communication

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, 54, 4704 DOI: 10.1039/C8CC02329H

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