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Journal articles
Effect of the precursor's stoichiometry on the optoelectronic properties of methylammonium lead bromide perovskites
Abstract : Methylammonium lead bromide (MAPbBr 3) 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 MAPbBr 3 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.
https://hal-cea.archives-ouvertes.fr/cea-01496886
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Tuesday, March 28, 2017 - 8:41:49 AM
Last modification on : Thursday, July 1, 2021 - 4:43:53 PM
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Tuesday, March 28, 2017 - 8:41:49 AM
Last modification on : Thursday, July 1, 2021 - 4:43:53 PM