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Issue 9, 2014
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Retarding the crystallization of PbI2 for highly reproducible planar-structured perovskite solar cells via sequential deposition

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Abstract

On a planar substrate the sequential deposition of CH3NH3PbI3 perovskite is optimized by retarding the crystallization of PbI2. This strategy overcomes the problem of incomplete conversion and uncontrolled particle sizes of perovskite in the absence of mesoporous scaffolds, greatly increasing the film reproducibility. Highly efficient and reproducible planar-structured perovskite solar cells were obtained with the best efficiency of 13.5%, average efficiency of 12.5% and a small standard deviation of 0.57 from a total of 120 cells.

Graphical abstract: Retarding the crystallization of PbI2 for highly reproducible planar-structured perovskite solar cells via sequential deposition

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Article information


Submitted
25 May 2014
Accepted
24 Jun 2014
First published
24 Jun 2014

Energy Environ. Sci., 2014,7, 2934-2938
Article type
Communication
Author version available

Retarding the crystallization of PbI2 for highly reproducible planar-structured perovskite solar cells via sequential deposition

Y. Wu, A. Islam, X. Yang, C. Qin, J. Liu, K. Zhang, W. Peng and L. Han, Energy Environ. Sci., 2014, 7, 2934
DOI: 10.1039/C4EE01624F

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