Nb2O5/SnO2 heterojunctions designed as optical absorbers and microwave band filters

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dc.authorscopusidAtef Fayez Qasrawi / 6603962677
dc.authorwosidAtef Fayez Qasrawi / R-4409-2019
dc.contributor.authorQasrawi, Atef Fayez
dc.contributor.authorKmail, Bayan H.
dc.date.accessioned2025-04-18T10:04:03Z
dc.date.available2025-04-18T10:04:03Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü
dc.description.abstractHerein, a 200 nm thick films of p-SnO2 are deposited onto p-Nb2O5 thin substrates (100 nm) to construct an isotype p-Nb2O5/p-SnO2 (NSO) heterojunction devices. The device is constructed using a thermal coating method in a vacuum media of low pressure reaching 10(-5) mbar. NSO heterojunctions represent two amorphous/amorphous-stacked layers that exhibit enhanced light absorption exceeding 170% and 120% in the visible and infrared regions of light spectrum, respectively. In addition, the interface under study displays band conduction offset of 0.60-0.90 eV and valence bad offset of 0.53-0.83 eV, respectively. The NSO device, which is treated as a planner microwaves resonators by contacting it with two Ohmic Pt electrodes, shows AC electrical conduction by the correlated barrier hopping within correlated barriers of average heights of 0.127 eV. Electrical conduction is actualized within scattering time constant of 0.27 ns. NSO microwaves resonators display gigahertz cutoff frequency spectra that suit 6G technology applications. The cutoff limit can be engineered in the range of 1.0-12.0 GHz by altering the driving frequency value. The features of the NSO heterojunctions nominate them for use in optoelectronic, which require high light absorption. The heterojunction devices are also promising for potential use in microwave technology a 6G bands filters.
dc.identifier.citationQasrawi, A. F., & Kmail, B. H. (2024). Nb2O5/SnO2 Heterojunctions Designed as Optical Absorbers and Microwave Band Filters. physica status solidi (a), 2400114.
dc.identifier.doi10.1002/pssa.202400114
dc.identifier.endpage8
dc.identifier.issn1862-6300
dc.identifier.issn1862-6319
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85194499307
dc.identifier.scopusqualityQ2
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1002/pssa.202400114
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6933
dc.identifier.volume221
dc.identifier.wosWOS:001230938600001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorQasrawi, Atef Fayez
dc.institutionauthoridAtef Fayez Qasrawi / 0000-0001-8193-6975
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPhysica status solidi (A) applications and materials science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subject6G Technologies
dc.subjectCutoff Frequencies
dc.subjectMicrowave Band Filters
dc.subjectOptoelectronics
dc.titleNb2O5/SnO2 heterojunctions designed as optical absorbers and microwave band filters
dc.typeArticle

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