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Issue 24, 2015
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Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells

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Abstract

We report an effective solvent engineering process to enable controlled perovskite crystal growth and a wider window for processing uniform and dense methyl ammonium lead iodide (MAPbI3) perovskite films. Planar heterojunction solar cells fabricated with this method demonstrate hysteresis-free performance with a power conversion efficiency around 10%. The crystal structure of an organic-based Pb iodide intermediate phase is identified for the first time, which is critical in controlling the crystal growth and optimizing thin film morphology.

Graphical abstract: Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells

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Supplementary files

Article information


Submitted
02 May 2015
Accepted
25 May 2015
First published
27 May 2015

Nanoscale, 2015,7, 10595-10599
Article type
Communication
Author version available

Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells

Y. Rong, Z. Tang, Y. Zhao, X. Zhong, S. Venkatesan, H. Graham, M. Patton, Y. Jing, A. M. Guloy and Y. Yao, Nanoscale, 2015, 7, 10595
DOI: 10.1039/C5NR02866C

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