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Efficient Photo- and Electroluminescence by Trap States Passivation in Vacuum-Deposited Hybrid Perovskite Thin Films

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Efficient Photo- and Electroluminescence by Trap States Passivation in Vacuum-Deposited Hybrid Perovskite Thin Films

dc.contributor.author	Dänekamp, Benedikt
dc.contributor.author	Droseros, Nikolaos
dc.contributor.author	Palazón Huet, Francisco
dc.contributor.author	Sessolo, Michele
dc.contributor.author	Banerji, Natalie
dc.contributor.author	Bolink, Henk
dc.date.accessioned	2020-06-18T10:51:53Z
dc.date.available	2020-06-18T10:51:53Z
dc.date.issued	2018
dc.identifier.citation	Dänekamp, Benedikt Droseros, Nikolaos Palazón Huet, Francisco Sessolo, Michele Banerji, Natalie Bolink, Henk 2018 Efficient Photo- and Electroluminescence by Trap States Passivation in Vacuum-Deposited Hybrid Perovskite Thin Films Acs Applied Materials & Interfaces 10 36187 36193
dc.identifier.uri	https://hdl.handle.net/10550/75129
dc.description.abstract	Methylammonium lead iodide (MAPI) has excellent properties for photovoltaic applications, although it typically shows low photoluminescence quantum yield (PLQY). Here we report on vacuum-deposited MAPI perovskites obtained by modifying the MAI to PbI2 ratio during vacuum deposition. By studying the excitation density dependence of the photoluminescence lifetime, a large concentration of trap states was deduced for the stoichiometric MAPI films. The use of excess MAI during vacuum processing is capable of passivating these traps, resulting in luminescent films which can be used to fabricate planar LEDs with quantum efficiency approaching 2%.
dc.language.iso	eng
dc.relation.ispartof	Acs Applied Materials & Interfaces, 2018, vol. 10, p. 36187-36193
dc.subject	Materials
dc.subject	Cèl·lules fotoelèctriques
dc.title	Efficient Photo- and Electroluminescence by Trap States Passivation in Vacuum-Deposited Hybrid Perovskite Thin Films
dc.type	journal article	es_ES
dc.date.updated	2020-06-18T10:51:53Z
dc.identifier.doi	10.1021/acsami.8b13100
dc.identifier.idgrec	129013
dc.rights.accessRights	open access	es_ES