High-quality CsPbBr3 perovskite films with modal gain above 10 000 cm−1 at room temperature

buir.contributor.authorSheremet, Volodymyr
buir.contributor.authorIşık, Furkan
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidSheremet, Volodymyr|0000-0003-0840-5312
buir.contributor.orcidIşık, Furkan|0000-0001-5881-5438
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage10en_US
dc.citation.issueNumber7
dc.citation.spage1
dc.citation.volumeNumber11
dc.contributor.authorTatarinov, D. A.
dc.contributor.authorAnoshkin, S. S.
dc.contributor.authorTsibizov, I. A.
dc.contributor.authorSheremet, Volodymyr
dc.contributor.authorIşık, Furkan
dc.contributor.authorZhizhchenko, A. Y.
dc.contributor.authorCherepakhin, A. B.
dc.contributor.authorKuchmizhak, A. A.
dc.contributor.authorPushkarev, A. P.
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorMakarov, S. V.
dc.date.accessioned2024-03-21T08:29:00Z
dc.date.available2024-03-21T08:29:00Z
dc.date.issued2023-01-29
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.departmentDepartment of Electrical and Electronics Engineering
dc.departmentDepartment of Physics
dc.description.abstractHalide perovskite lasers based on CsPbBr3 micro- and nanoscale crystals have demonstrated fascinating performance owing to their low-threshold lasing at room temperature and cost-effective fabrication. However, chemi-cally synthesized thin films of CsPbBr3 usually have rough polycrystalline morphology along with a large amount of crystal lattice defects and, thus, are mostly utilized for the engineering of light-emitting devices. This obstacle prevents their usage in many photonic applications. Here, a protocol to deposit large-grain and smooth CsPbBr3 thin films is developed. Their high quality and large scale allow to demonstrate a maximum optical gain up to 12 900 cm−1 in the spectral range of 530–540 nm, which is a record-high value among all previously reported halide perovskites and bulk semiconductors (e.g., GaAs, GaN, etc.) at room temperature. Moreover, femtosecond laser ablation technique is employed to create high-quality microdisc lasers on glass from these films to obtain excellent lasing characteristics. The revealed critical roles of thickness and grain size for the CsPbBr3 films with extremely high optical gain pave the way for development of low-threshold lasers or ultimately small nanolasers, as well as to apply them for polaritonic logical elements and integrated photonic chips.
dc.embargo.release2024-01-29
dc.identifier.doi10.1002/adom.202202407
dc.identifier.eissn2195-1071
dc.identifier.urihttps://hdl.handle.net/11693/115043
dc.language.isoen_US
dc.publisherWiley-VCH Verlag GmbH
dc.relation.isversionofhttps://dx.doi.org/10.1002/adom.202202407
dc.rightsCC BY-NC-ND 4.0 Deed (Attribution-NonCommercial-NoDerivs 4.0 International)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0
dc.source.titleAdvanced Optical Materials
dc.titleHigh-quality CsPbBr3 perovskite films with modal gain above 10 000 cm−1 at room temperature
dc.typeArticle

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