Photoinduced Migration of Ions in Optically Resonant Perovskite Nanoparticles

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dc.contributor.authorGets, D. S.
dc.contributor.authorTiguntseva, E. Y.
dc.contributor.authorBerestennikov, A. S.
dc.contributor.authorLyashenko, T. G.
dc.contributor.authorPushkarev, A. P.
dc.contributor.authorMakarov, S. V.
dc.contributor.authorZakhidov, Anvar A.
dc.contributor.utdAuthorZakhidov, Anvar A.
dc.date.accessioned2019-08-30T17:07:02Z
dc.date.available2019-08-30T17:07:02Z
dc.date.created2018-08-28
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).
dc.description.abstractOrganic–inorganic perovskites with a mixed anion composition are widely used in solar cells, light-emitting diodes, and nanophotonic structures. Light nanosources based on resonant perovskite nanoparticles are of particular interest. However, perovskites with such a composition demonstrate the light-induced segregation of anions, which leads to a reversible dynamic rearrangement of the optical properties of a material and photoluminescence spectra. In this work, the photoinduced process of change in optical properties in resonant hybrid perovskite nanoparticles with a mixed anion composition (MAPbBr₁.₅I₁.₅, where MA = NH₃CH₃⁺) has been studied. Comparison with a similar process in a perovskite thin film with a similar composition has shown that the photoinduced migration of halogen ions in a nanoparticle occurs cyclically. This is due to the competition of two processes: the concentration of ions near the boundaries of the particle and migration caused by the gradient of the density of light-generated electron–hole pairs. This effect in resonant nanoparticles makes it possible to obtain optically tunable nanoantennas.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.description.sponsorshipThis work was supported by the Ministry of Education and Science of the Russian Federation (project no. 14.Y26.31.0010 for the experimental part and project no. 16.8939.2017/8.9 for the calculations).
dc.identifier.bibliographicCitationGets, D. S., E. Y. Tiguntseva, A. S. Berestennikov, T. G. Lyashenko, et al. 2018. "Photoinduced Migration of Ions in Optically Resonant Perovskite Nanoparticles." JETP Letters 107(12): 742-748, doi:10.1134/S002136401812007X
dc.identifier.issn0021-3640
dc.identifier.issue12
dc.identifier.urihttps://hdl.handle.net/10735.1/6817
dc.identifier.volume107
dc.language.isoen
dc.publisherPleiades Publishing
dc.relation.urihttp://dx.doi.org/10.1134/S002136401812007X
dc.rights©2018, Pleiades Publishing, Inc.
dc.source.journalJETP Letters
dc.subjectPerovskite
dc.subjectAnions
dc.subjectHalogens
dc.subjectPhotoluminescence
dc.subjectNanoparticles
dc.titlePhotoinduced Migration of Ions in Optically Resonant Perovskite Nanoparticles
dc.type.genrearticle

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