Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5397587 | Journal of Luminescence | 2017 | 6 Pages |
Abstract
Methylammonium lead bromide (MAPbBr3) perovskites have been widely studied in applications such as lasers and light-emitting diodes, thanks to their favorable bandgap, efficient charge transport, and the possibility of processing by simple solution methods. The film morphology has a large impact on the optical and electronic properties of the material; hence the deposition methods and the type of precursors used are crucial in the preparation of efficient optoelectronic devices. Here we studied the effect of the precursor´s stoichiometry of solution processed MAPbBr3 thin films on their optical and electronic properties. We found a drastic effect of the stoichiometry on the resulting thin film morphology, and suggest the use of excess MA cations to enhance the photo- and electroluminescence of hybrid perovskites.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
Giulia Longo, Alan Wong, Michele Sessolo, Henk J. Bolink,