Advanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskites

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dc.contributor.authorGavranović, Stevancs
dc.contributor.authorZmeškal, Oldřichcs
dc.contributor.authorWeiter, Martincs
dc.contributor.authorPospíšil, Jancs
dc.coverage.issue1cs
dc.coverage.volume8cs
dc.date.accessioned2025-08-18T13:02:29Z
dc.date.available2025-08-18T13:02:29Z
dc.date.issued2025-07-04cs
dc.description.abstractUnderstanding how charge carriers behave in semiconductors is key to improving next-generation optoelectronic devices. Here we introduce an advanced space-charge-limited current model that enables detailed extraction of mobility, charge carrier concentrations, and Fermi level position from voltage- and energy-dependent analysis. Applying this model to two promising halide perovskites, methylammonium lead bromide and methylammonium lead iodide, we observe a strong photoresponse, with significant increases in microscopic mobility and free carrier density under illumination. Interestingly, the behavior of trapped charges and Fermi level shifts differs between the two materials, revealing distinct transport mechanisms. This model offers a powerful tool for characterizing semiconductors and could accelerate the development of more efficient light-sensitive devices.en
dc.formattextcs
dc.format.extent1-10cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCOMMUNICATIONS PHYSICS. 2025, vol. 8, issue 1, p. 1-10.en
dc.identifier.doi10.1038/s42005-025-02202-1cs
dc.identifier.issn2399-3650cs
dc.identifier.orcid0000-0002-0176-8703cs
dc.identifier.orcid0000-0002-2517-6227cs
dc.identifier.orcid0000-0001-7886-8588cs
dc.identifier.orcid0000-0002-0557-9862cs
dc.identifier.other198537cs
dc.identifier.researcheridHII-9783-2022cs
dc.identifier.researcheridLUZ-2359-2024cs
dc.identifier.scopus57403459100cs
dc.identifier.urihttps://hdl.handle.net/11012/255423
dc.language.isoencs
dc.publisherNATURE PORTFOLIOcs
dc.relation.ispartofCOMMUNICATIONS PHYSICScs
dc.relation.urihttps://www.nature.com/articles/s42005-025-02202-1cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2399-3650/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectbulk trap spectroscopyen
dc.subjectcarrier mobilityen
dc.subjectperformanceen
dc.subjectlengthsen
dc.subjectsolidsen
dc.subjectTMSCLCen
dc.titleAdvanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskitesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/GA0/GA/GA25-17500Scs
sync.item.dbidVAV-198537en
sync.item.dbtypeVAVen
sync.item.insts2025.08.18 15:01:13en
sync.item.modts2025.08.18 14:32:55en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
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