Browsing by Author "Almotiri, R. A."
Now showing items 1-7 of 7
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Ag/n–Si/p–MgSe/(Ag, C, Au, Pt) devices designed as current rectifiers, photodetectors and as ac signal filters suitable for VLC, IR Q3 and 6G technologies
Almotiri, R. A.; Qasrawi, Atef Fayez; Algarni, Sabah E. (IOP Publishing, 2022)Herein the fabrication and practical applications of p-MgSe thin films as active p-layer of electronic devices are reported. MgSe films are prepared by a vacuum evaporation technique onto n-Si substrates under a vacuum ... -
Enhanced properties of indium thin films by stacking with platinum nanosheets designed for advanced terahertz/ gigahertz applications
Almotiri, R. A.; Qasrawi, Atef Fayez (Optical and Quantum Electronics, 2023)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 a vacuum ... -
Enhancement of the electrical properties of Au/MgSe/Au microwave resonators via pulsed laser welding of MgSe and Au nanosheets
Almotiri, R. A.; Qasrawi, Atef Fayez; Agha, B. S. (Springer, 2023)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 Au/MgSe (PLW) ... -
Formation and characterization of MgSe alloys by pulsed laser welding technique
Almotiri, R. A.; Qasrawi, Atef Fayez (Wiley, 2023)Herein, MgSe alloys with different compositions are fabricated using laser welding techniques within a couple of minutes in an argon atmosphere. The optimum laser welding parameters, which reveal the correct compositio ... -
Growth and characterization of vacuum evaporated MgSe thin films
Almotiri, R. A.; Qasrawi, Atef Fayez; Al Garni, Sabah E. (Springer, 2023)Herein, thin flms of magnesium selenide are thermally grown in a vacuum deposition (VD) system onto glass substrates under a vacuum pressure of 10–5 mbar. The flms are structurally, morphologically, compositionally, and ... -
ITO/MgSe interfaces designed as gigahertz/terahertz filters
Almotiri, R. A.; Qasrawi, A. F. (IOP Science, 2023)Herein a new class of MgSe gigahertz/terahertz band filters operatives in the frequency domain of 1.0 GHz-1.86 THz is fabricated and experimentally tested. MgSe band filters are coated onto glass and indium tin oxide (ITO) ... -
Optoelectronic performance of n−Si/p−MgSe heterojunctions as a visible light communication component
Almotiri, R. A.; Qasrawi, Atef Fayez (Elsevier B.V., 2022)Herein magnesium selenide thin films coated onto glass and Si substrates are studied and characterized. The films, prepared by the thermal vacuum evaporation technique under a vacuum pressure of 10−5 mbar, are structurally, ...
