Reduction of intrinsic defects in hybrid perovskite films: Via precursor purification

Deliang Zhang, Bin Bin Cui*, Chenxiao Zhou, Liang Li, Yihua Chen, Ning Zhou, Ziqi Xu, Yujing Li, Huanping Zhou, Qi Chen

*Corresponding author for this work

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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%.

Original languageEnglish
Pages (from-to)10548-10551
Number of pages4
JournalChemical Communications
Volume53
Issue number76
DOIs
Publication statusPublished - 2017

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Zhang, D., Cui, B. B., Zhou, C., Li, L., Chen, Y., Zhou, N., Xu, Z., Li, Y., Zhou, H., & Chen, Q. (2017). Reduction of intrinsic defects in hybrid perovskite films: Via precursor purification. Chemical Communications, 53(76), 10548-10551. https://doi.org/10.1039/c7cc05590k