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within A. F. Qasrawi Remove this filter Characterization and Evaluation of Materials Remove this filter

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  1. No Access

    Article

    Electro-optical dynamics in SnO2 designed as negative resistance sources and gigahertz/terahertz band filters

    Amorphous thin films of SnO2, prepared by a vacuum evaporation technique under a pressure of 10− 5 mbar, are employed as electro-optical filters suitable for microwave, infrared, and visible light communication t...

    A. F. Qasrawi, Bayan H. Kmail in Optical and Quantum Electronics (2024)

  2. No Access

    Article

    p-Si/n-CrSe2 Heterojunctions Designed as High-Frequency Capacitors and Photosensors

    In this work, polycrystalline n-CrSe2 nanosheets with thickness of 100 nm are grown on p-type Si wafers by the thermal deposition technique under vacuum pressure of 10−5 mbar. Structural and optical investigation...

    Sabah E. Algarni, A. F. Qasrawi, Najla M. Khusayfan… in Journal of Electronic Materials (2024)

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    Article

    Enhanced performance of Pb/FeSe2 interfaces designed for electrical applications

    In this work, iron selenide layers are deposited onto glass and lead substrates to perform as terahertz filters. The layers are deposited by the thermal evaporation technique under a vacuum pressure of 10–5 mbar....

    Seham R. Alharbi, A. F. Qasrawi, Sabah E. Algarni in Applied Physics A (2024)

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    Article

    InSe/CrSe Interfaces Performed as Resistive Switches and Band Filters for Gigahertz/Terahertz Communication Technology Applications

    Herein chromium selenide (n-CrSe) nanosheets are deposited onto amorphous indium selenide (n-InSe) thin films by the thermal evaporation technique under a vacuum pressure of 10−5 mbar. The formed InSe/CrSe hetero...

    Sabah E. Algarni, A. F. Qasrawi, Najla M. Khusayfan in Optical and Quantum Electronics (2023)

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    Article

    Growth and characterization of chromium selenide thin films for optoelectronic applications

    Herein amorphous and stoichiometric CrSe2 thin films are obtained by the thermal deposition (TD) technique under a vacuum pressure of 10−5 mbar. The films are structurally, morphologically, optically and dielectr...

    Amjad Salamah M. Aljaloud, A. F. Qasrawi… in Optical and Quantum Electronics (2023)

  6. No Access

    Article

    Production of PtInx Thin Films by the Pulsed Laser Welding Technique

    Herein, PtInx nanosheets are fabricated by the pulsed laser welding technique (PLW) in an argon atmosphere within seconds from stacked layers of Pt (150 nm) and In (150 nm). Pt/In stacked layers coated by thermal...

    Latifah Hamad Khalid Alfhaid, A. F. Qasrawi in Journal of Electronic Materials (2023)

  7. No Access

    Article

    Copper do** effects on the optical and dielectric properties of amorphous indium selenide thin films

    In this study, to enhance their optoelectronic performances, amorphous indium selenide (a-InSe) thin films were doped with copper using the thermal evaporation technique under a vacuum pressure of 10–5 mbar. The ...

    A. F. Qasrawi, Fatima M. Aboalrub in Optical and Quantum Electronics (2023)

  8. No Access

    Article

    LaGe2 Thin Films Designed as Band Filters for 6G Communication Technology

    Herein, LaGe2 thin films with thickness of 150 nm are grown on thin layers of indium by the thermal evaporation technique under a vacuum pressure of 10−5 mbar. The films are structurally, morphologically, composi...

    Latifah Hamad Khalid Alfhaid, A. F. Qasrawi in Journal of Electronic Materials (2023)

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    Article

    Electrical properties of amorphous Cu doped InSe thin films

    In this study, we employed thermal evaporation under vacuum conditions to introduce copper dopants into amorphous InSe thin films. Our objective was to scrutinize the effects of varied copper do** concentrat...

    A. F. Qasrawi, Maryam Khalefa N. Abuarra in Applied Physics A (2023)

  10. No Access

    Article

    High-performance n – Si/p – SeO2 /p – SiO2  heterojunction photodetectors for potential application in visible light communication technology

    Photodetectors suitable for visible light communication (VLC) technology were fabricated and characterized in this study. The photodetectors were designed using two p-type stacked layers of SeO2 and SiO2, which w...

    Seham R. N. Alharbi, A. F. Qasrawi, Sabah E. Algarni in Applied Physics A (2023)

  11. No Access

    Article

    Selenium oxide based laser sensors designed for optoelectronic applications

    In this study, stacked layers of \(p-\) p - ...

    Seham R. N. Alharbi, A. F. Qasrawi, Sabah E. Algarni in Optical and Quantum Electronics (2023)

  12. No Access

    Article

    In/MgSe Terahertz Filters with Enhanced Optical Conduction and Light Absorption

    In 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 ultrasonicall...

    Seham R. Alharbi, A. F. Qasrawi in Journal of Electronic Materials (2023)

  13. No Access

    Article

    Enhanced properties of indium thin films by stacking with platinum nanosheets designed for advanced terahertz/gigahertz applications

    Herein stacked layers of metallic indium (150 nm) and platinum (50–250 nm) thin films are fabricated as a terahertz/gigahertz filters. Indium thin films are produced by the thermal evaporation technique under ...

    R. A. Almotiri, A. F. Qasrawi in Optical and Quantum Electronics (2023)

  14. No Access

    Article

    Induced crystallization and enhanced light absorption and optical conduction in WO3 films via pulsed laser welding technique

    Herein amorphous WO3 thin films prepared by the thermal evaporation technique under a vacuum pressure of 10−5 mbar are treated via pulsed laser welding technique (PLW) in an argon atmosphere. An induced crystalli...

    Latifah Hamad Khalid Alfhaid, A. F. Qasrawi in Optical and Quantum Electronics (2023)

  15. No Access

    Article

    Enhancement of the electrical properties of Au/MgSe/Au microwave resonators via pulsed laser welding of MgSe and Au nanosheets

    Herein, stacked nanosheets of Au (50 nm) and MgSe (100 nm) are fabricated by the thermal evaporation technique and welded by pulsed lasers of wavelengths of 1064 nm within few seconds. Au/MgSe (AMA) and welded...

    R. A. Almotiri, A. F. Qasrawi, B. S. Agha in Applied Physics A (2023)

  16. No Access

    Article

    Growth and Characterization of Vacuum Evaporated MgSe Thin Films

    Herein, thin films of magnesium selenide are thermally grown in a vacuum deposition (VD) system onto glass substrates under a vacuum pressure of 10–5 mbar. The films are structurally, morphologically, composition...

    R. A. Almotiri, A. F. Qasrawi, Sabah E. Al Garni in Journal of Electronic Materials (2023)

  17. No Access

    Article

    Pt/PbSe optoelectronic receivers designed for 6G and terahertz communication technologies

    Herein PbSe thin films are coated onto glass and semitransparent platinum substrates. The films which are treated as optoelectronic signal receivers are deposited by the thermal evaporation technique under a v...

    Manal M. Alkhamisi, A. F. Qasrawi, Hazem K. Khanfar… in Optical and Quantum Electronics (2022)

  18. No Access

    Article

    Growth and characterization of PbSe microcrystals via the pulsed laser welding technique

    Herein lead selenide crystals are fabricated by the pulsed laser welding (PLW) technique within 2 min. The effect of the pulse width on the crystallinity, surface morphology, structural parameters, composition...

    Manal M. Alkhamisi, Hazem K. Khanfar, A. F. Qasrawi, Sabah E. Algarni in Applied Physics A (2022)

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    Article

    Transparent In/SeO2 Thin Film Transistors Designed for Gigahertz/Terahertz Technologies

    Herein, thin films of selenium oxide are coated onto transparent indium substrates with thickness of 150 nm under vacuum pressure of 10–5 mbar. In/SeO2 optical receivers are structurally, optically and electrical...

    A. F. Qasrawi, Rana B. Daragme in Journal of Electronic Materials (2022)

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    Article

    Enhanced structural, optical and dielectric properties of the Se/CdBr2 interfaces designed as terahertz optical receivers

    Herein monoclinic selenium thin films are used as substrates to grow hexagonal cadmium bromide thin films. It is found that selenium substrates enhance the growth of larger crystallites and reduces the microst...

    A. F. Qasrawi, Salsabeel N. N. Imair in Optical and Quantum Electronics (2022)

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