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Issue 99, 2014
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Influence of moisture on the preparation, crystal structure, and photophysical properties of organohalide perovskites

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Abstract

The effect of preparing lead-based organohalide perovskites under inert conditions has been investigated. We find that when prepared under anhydrous conditions, only poorly crystalline powders were obtained. On exposure to small amounts of moisture a rapid crystallization into the expected cubic unit cell for CH3NH3PbBr3 and tetragonal cell for CH3NH3PbI3 is observed. While the as-prepared iodide phase is non-emissive, the lifetime of the emission for the bromide is found to be much longer when prepared under atmospheric conditions.

Graphical abstract: Influence of moisture on the preparation, crystal structure, and photophysical properties of organohalide perovskites

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Publication details

The article was received on 08 Jul 2014, accepted on 21 Oct 2014 and first published on 21 Oct 2014


Article type: Communication
DOI: 10.1039/C4CC05231E
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Chem. Commun., 2014,50, 15819-15822

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    Influence of moisture on the preparation, crystal structure, and photophysical properties of organohalide perovskites

    K. K. Bass, R. E. McAnally, S. Zhou, P. I. Djurovich, M. E. Thompson and B. C. Melot, Chem. Commun., 2014, 50, 15819
    DOI: 10.1039/C4CC05231E

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