Show simple item record

dc.contributor.authorMarkina, DI
dc.contributor.authorTiguntseva, EY
dc.contributor.authorPushkarev, AP
dc.contributor.authorSamsonov, MA
dc.contributor.authorVengris, M
dc.contributor.authorMunkhbat, B
dc.contributor.authorShegai, T
dc.contributor.authorHix, GB
dc.contributor.authorZakhidov, AA
dc.contributor.authorMakarov, SV
dc.date.accessioned2020-02-13T14:40:25Z
dc.date.available2020-02-13T14:40:25Z
dc.date.issued2019-12-26
dc.identifier.citationMarkina, D. I., Tiguntseva, E. Y., Pushkarev, A. P., Samsonov, M. A., Vengris, M., Munkhbat, B., Shegai, T., Hix, G. B., Zakhidov, A. A. and Makarov, S. V. (2019) Photophysical properties of halide perovskite CsPb(Br1-xIx)3 thin films and nanowires, Journal of Luminescence, 220, 116985.en
dc.identifier.issn0022-2313en
dc.identifier.doi10.1016/j.jlumin.2019.116985en
dc.identifier.urihttp://hdl.handle.net/2436/623073
dc.description.abstract© 2019 Thin films and nanowires based on lead halide perovskites are promising objects for the design of various optoelectronic devices as well as nano- and microlasers. One of the main advantages of such materials is their absorption and photoluminescence spectra tuning across the visible range via the change in their chemical composition, for instance, by substitution of one halide atom (Br) for another one (I) in the crystal lattice of CsPb(Br1-xIx)3. However, this approach gives materials showing unstable photoluminescence behavior caused by light-induced perovskite phase separation under high-intensity excitation at room temperature. In this work, CsPb(Br1-xIx)3 thin films and nanowires are obtained by chemical vapor anion exchange method from their CsPbBr3 counterparts fabricated by improved wet chemical methods. Spontaneous and stimulated emission from the mixed-halide and pristine bromide samples are studied. Tribromide nanowires exhibit lasing with relatively low thresholds (10–100 μJ/cm2) and high Q-factor of the laser mode up to 3500. The temperature dependence of the photoinitiated phase separation in CsPbBr1.5I1.5 samples is investigated, showing that light-induced phase instability of the mixed-halide nanowires can be suppressed at the somewhat higher temperature (250 K) than the value observed for the thin films having a similar chemical composition. The results obtained are important for the optimization of the functioning of optoelectronic devices based on considered perovskite materials.en
dc.description.sponsorshipS.V.M. and A.A.Z. thank the Russian Science Foundation (grant 17-73-20336) for the financial support of study of nanostructures. S.V.M. acknowledges funding from the Ministry of Science and Higher Education of the Russian Federation (project 14.Y26.31.0010). M.V. acknowledges funding from the European Regional Development Fund according to the supported activity ‘Research Projects Implemented by World-class Researcher Groups’ under Measure No. 01.2.2-LMT-K-718, grant No. 01.2.2-LMT-K-718-01-0014. G.H. acknowledges ITMO Fellowship Program.en
dc.formatapplication/pdfen
dc.languageen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0022231319311068?via%3Dihuben
dc.subjectcesium lead halide perovskiteen
dc.subjectmixed-halide perovskiteen
dc.subjectthin filmen
dc.subjectnanowireen
dc.subjectlasingen
dc.subjectsegregationen
dc.titlePhotophysical properties of halide perovskite CsPb(Br1-xIx)3 thin films and nanowiresen
dc.typeJournal articleen
dc.identifier.journalJournal of Luminescenceen
dc.date.updated2020-02-13T14:25:03Z
dc.date.accepted2019-12-19
rioxxterms.funderRussian Science Foundation, Ministry of Science and Higher Education of the Russian Federation, European Regional Development Fund, ITMO Fellowship Programen
rioxxterms.identifier.projectUOW13022020GHen
rioxxterms.versionAMen
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2020-12-26en
dc.source.volume220
dc.source.beginpage116985
dc.source.endpage116985
dc.description.versionAccepted version
refterms.dateFCD2020-02-13T14:38:26Z
refterms.versionFCDAM


Files in this item

Thumbnail
Name:
Publisher version
Thumbnail
Name:
J Lumin 2020 AAM.pdf
Embargo:
2020-12-26
Size:
2.153Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record