In/MgSe Terahertz filters with enhanced optical conduction and light absorption

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dc.authoridAtef Fayez Qasrawi / 0000-0001-8193-6975en_US
dc.authorscopusidAtef Fayez Qasrawi / 6603962677en_US
dc.authorwosidAtef Fayez Qasrawi / R-4409-2019en_US
dc.contributor.authorAlharbi, Seham R.
dc.contributor.authorQasrawi, Atef Fayez
dc.date.accessioned2023-04-17T07:13:59Z
dc.date.available2023-04-17T07:13:59Z
dc.date.issued2023en_US
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractIn this work, semitransparent indium thin films with thickness of 200 nm were used as substrates for depositing magnesium selenide thin films (200 nm). Both indium and MgSe films were coated onto ultrasonically cleaned glass substrates under vacuum pressure of 10– 5 mbar. The structural and morphological studies on these thin films showed that indium conducting layers suppressed the formation of cubic MgSe2 phase in the films. Optically, it was observed that semitransparent indium substrates improved the light absorption in the visible and infrared ranges of light. The light absorption increased by more than 14 times at 1.20 eV. In addition, coating MgSe onto In substrates resulted in a shift in the direct allowed transitions band gap from 2.54 eV to 1.92 eV. It also decreased the dielectric constant values. The optical conductivity and terahertz cutoff frequency values increased at the In/MgSe interfaces. Fitting of the optical conductivity spectra of In/MgSe interfaces by Drude–Lorentz approaches showed that indium substrates increased the drift mobility by two times and increased the plasmon frequency of MgSe. The enhanced optical conductivity and increased terahertz cutoff frequency values which are achieved via coating MgSe onto semitransparent indium substrates make MgSe films applicable in terahertz technology as band filters.en_US
dc.identifier.citationAlharbi, S. R., & Qasrawi, A. F. (2023). In/MgSe Terahertz Filters with Enhanced Optical Conduction and Light Absorption. Journal of Electronic Materials, 1-9.en_US
dc.identifier.doi10.1007/s11664-023-10351-8en_US
dc.identifier.scopus2-s2.0-85152388381en_US
dc.identifier.urihttps://doi.org/10.1007/s11664-023-10351-8
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3901
dc.identifier.wosWOS:001058182300002en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorQasrawi, Atef Fayez
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Electronic Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectIn/MgSeen_US
dc.subjectThermal Evaporationen_US
dc.subjectTerahertzen_US
dc.subjectDielectric Dispersionen_US
dc.subjectOptical Receiversen_US
dc.titleIn/MgSe Terahertz filters with enhanced optical conduction and light absorptionen_US
dc.typeArticleen_US

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