La/Ge stacked nanosheets designed as optical resonators, microwave oscillators and 5 G/6 G gigahertz receivers

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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.authorAlkhamisi, Manal M.
dc.contributor.authorQasrawi, Atef Fayez
dc.contributor.authorKhanfar, Hazem K.
dc.date.accessioned2023-07-05T07:38:09Z
dc.date.available2023-07-05T07:38:09Z
dc.date.issued2023en_US
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractGlass/Ge and La/Ge stacked layers, 100 nm thick, were prepared via thermal evaporation under a vacuum pressure of 10-5 mbar. Structural analysis confirmed amorphous growth of Ge nanosheets. Optically coating Ge onto La improved light absorption, energy band gap, and dielectric responses. In addition, dielectric spectra fitting using Lorentz approach showed increased free electron density, plasmon frequency, and drift mobility (up to 1153 cm2/Vs) in Ge due to lanthanum presence. Moreover, LGA Schottky barrier devices (La/Ge/Au) exhibited tunneling-type current conduction with 0.815 eV barrier height and 40 nm width. Resistance spectra of these Schottky barriers displayed negative resistance near 0.40 GHz, while capacitance spectra showed resonance-antiresonance behavior. La/Ge and LGA interface can be utilized for optical receivers and microwave resonators in 5 G/6 G technologies.en_US
dc.description.sponsorshipKing Abdulaziz University,Jeddah, Saudi Arabiaen_US
dc.identifier.citationAlkhamisi, M. M., Qasrawi, A. F., & Khanfar, H. K. (2023). La/Ge stacked nanosheets designed as optical resonators, microwave oscillators and 5 G/6 G gigahertz receivers. Optik, 171105.en_US
dc.identifier.doi10.1016/j.ijleo.2023.171105en_US
dc.identifier.scopus2-s2.0-85163564414en_US
dc.identifier.startpage171105en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijleo.2023.171105
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3934
dc.indekslendigikaynakScopusen_US
dc.institutionauthorQasrawi, Atef Fayez
dc.language.isoenen_US
dc.publisherOptiken_US
dc.relation.ispartofOptiken_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLa/Ge/Au Schottky Devicesen_US
dc.subjectOptical Filtersen_US
dc.subjectLorentz Oscillatoren_US
dc.subjectMicrowave Resonatorsen_US
dc.titleLa/Ge stacked nanosheets designed as optical resonators, microwave oscillators and 5 G/6 G gigahertz receiversen_US
dc.typeArticleen_US

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