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Dimensionality Controls Anion Intermixing in Electroluminescent Perovskite Heterojunctions

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Dimensionality Controls Anion Intermixing in Electroluminescent Perovskite Heterojunctions

dc.contributor.author	Chin, Sang-Hyun
dc.contributor.author	Mardegan, Lorenzo
dc.contributor.author	Palazón Huet, Francisco
dc.contributor.author	Sessolo, Michele
dc.contributor.author	Bolink, Henk
dc.date.accessioned	2022-08-29T11:48:09Z
dc.date.available	2022-08-29T11:48:09Z
dc.date.issued	2022
dc.identifier.uri	https://hdl.handle.net/10550/83568
dc.description.abstract	Metal halide perovskites have emerged as a promising group of materials for optoelectronic applications such as photovoltaics, light emission, and photodetectors. So-far, in particular, the stability of light-emitting devices is limited, which is in part attributed to the intrinsic ionic conductivity of these materials. High-performance devices inevitably contain heterojunctions similar to other optoelectronic devices based on oxide perovskites, II-VI, or III-V group semiconductors. To enable efficient heterojunctions, ion exchange at the interface between different layers should be controlled. Herein, we report a method that enables to control and monitor the extent of anion intermixing between solution-processed lead bromide and vacuum-deposited lead chloride perovskite films. Taking advantage of the ability to fine tune the layer thicknesses of the vacuum-deposited films, we systematically study the effect of film thickness on anionic intermixing. Using these multiple layers, we prepare proof of principle light-emitting devices exhibiting green and blue electroluminescence.
dc.language.iso	eng
dc.relation.ispartof	Acs Photonics, 2022, vol. 9, num. 7, p. 2483-2488
dc.source	Chin, Sang-Hyun Mardegan, Lorenzo Palazón Huet, Francisco Sessolo, Michele Bolink, Henk 2022 Dimensionality Controls Anion Intermixing in Electroluminescent Perovskite Heterojunctions Acs Photonics 9 7 2483 2488
dc.subject	Electroquímica
dc.title	Dimensionality Controls Anion Intermixing in Electroluminescent Perovskite Heterojunctions
dc.type	journal article	es_ES
dc.date.updated	2022-08-29T11:48:09Z
dc.identifier.doi	https://doi.org/10.1021/acsphotonics.2c00604
dc.identifier.idgrec	154562
dc.rights.accessRights	open access	es_ES