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Issue 10, 2015
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Improvement of the humidity stability of organic–inorganic perovskite solar cells using ultrathin Al2O3 layers prepared by atomic layer deposition

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Abstract

For the successful commercialization of organic–inorganic halide perovskite solar cells, it is necessary to ensure their stability in addition to high efficiency. In this study, the degradation mechanism of organic–inorganic halide structures in humidity was investigated computationally. Owing to the high polarity of water molecules, the unprotected organic–inorganic structure will inevitably decompose in a humid environment. To improve the ambient stability of the organic–inorganic perovskite solar cells, we introduced an interface modification method using ultrathin compact aluminum oxide (Al2O3) layers deposited by atomic layer deposition (ALD). The experimental results showed the ambient stability of the organic–inorganic perovskite solar cell with an ultrathin compact Al2O3 layer was greatly improved without a significant reduction in efficiency.

Graphical abstract: Improvement of the humidity stability of organic–inorganic perovskite solar cells using ultrathin Al2O3 layers prepared by atomic layer deposition

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Publication details

The article was received on 12 Nov 2014, accepted on 20 Jan 2015 and first published on 20 Jan 2015


Article type: Paper
DOI: 10.1039/C4TA06128D
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J. Mater. Chem. A, 2015,3, 5360-5367

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    Improvement of the humidity stability of organic–inorganic perovskite solar cells using ultrathin Al2O3 layers prepared by atomic layer deposition

    X. Dong, X. Fang, M. Lv, B. Lin, S. Zhang, J. Ding and N. Yuan, J. Mater. Chem. A, 2015, 3, 5360
    DOI: 10.1039/C4TA06128D

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