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

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

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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.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 info:eu-repo/semantics/article
dc.date.updated 2020-06-18T10:51:53Z
dc.identifier.doi https://doi.org/10.1021/acsami.8b13100
dc.identifier.idgrec 129013

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