Optical Dynamics in the Ag/Α-ga<sub>2< Layer System

dc.authorid Qasrawi, Atef Fayez/0000-0001-8193-6975
dc.authorscopusid 55735276400
dc.authorscopusid 6603962677
dc.authorwosid Alharbi, Seham/JFK-4290-2023
dc.authorwosid Qasrawi, Atef Fayez/R-4409-2019
dc.contributor.author Alharbi, S. R.
dc.contributor.author Qasrawi, A. F.
dc.contributor.other Department of Electrical & Electronics Engineering
dc.date.accessioned 2024-07-05T15:26:55Z
dc.date.available 2024-07-05T15:26:55Z
dc.date.issued 2018
dc.department Atılım University en_US
dc.department-temp [Alharbi, S. R.] King Abdulaziz Univ, Phys Dept, Fac Sci, Jeddah, Saudi Arabia; [Qasrawi, A. F.] Arab Amer Univ, Dept Phys, Jenin, Palestine; [Qasrawi, A. F.] Atilim Univ, Grp Phys, Fac Engn, TR-06836 Ankara, Turkey en_US
dc.description Qasrawi, Atef Fayez/0000-0001-8193-6975 en_US
dc.description.abstract In this work, thin films of Ga2S3 are deposited onto 150 nm thick transparent Ag substrate by the physical vapor deposition technique under vacuum pressure of 10(-5) mbar. The films are studied by the X-ray diffraction and optical spectrophotometry techniques. It is found that the Ag substrate induced the formation of the monoclinic alpha-Ga2S3 polycrystals. The transparent Ag substrate also changed the preferred optical transition in Ga2S3 from direct to indirect It also increased the light absorption by 79 and 23 times at incident light energies of 2.01 and 2.48 eV, respectively. In addition, a red shift in all types of optical transitions is observed. Some the extended energy band tails of Ag appears to form interbands in the band gap of Ga2S3. These interbands strongly attenuated the dielectric and optical conduction parameters. Particularly, an enhancement in the dielectric constant values and response to incident electromagnetic field is observed. The Drude-Lorentz modeling of this interface has shown that the free carrier density, drift mobility, plasmon frequency and reduced electron-plasmon frequency in Ga2S3 increases when the Ag substrate replaced the glass or other metals like Yb, Al and Au. The nonlinear optical dynamics of the Ag/Ga2S3 are promising as they indicate the applicability of this interface for optoelectronic applications. en_US
dc.description.sponsorship Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah [D-056-3631438]; DSR en_US
dc.description.sponsorship This work was supported by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under grant No. (D-056-3631438). The authors, therefore, gratefully acknowledge the DSR for technical and financial support. en_US
dc.identifier.citationcount 8
dc.identifier.doi 10.1016/j.mssp.2018.04.018
dc.identifier.endpage 106 en_US
dc.identifier.issn 1369-8001
dc.identifier.issn 1873-4081
dc.identifier.scopus 2-s2.0-85046413091
dc.identifier.scopusquality Q1
dc.identifier.startpage 102 en_US
dc.identifier.uri https://doi.org/10.1016/j.mssp.2018.04.018
dc.identifier.uri https://hdl.handle.net/20.500.14411/2619
dc.identifier.volume 83 en_US
dc.identifier.wos WOS:000433236200015
dc.identifier.wosquality Q2
dc.institutionauthor Qasrawı, Atef Fayez Hasan
dc.language.iso en en_US
dc.publisher Elsevier Sci Ltd en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 8
dc.subject Ag en_US
dc.subject alpha-Ga2S3 en_US
dc.subject X-ray en_US
dc.subject Optical conductivity en_US
dc.subject Dielectric en_US
dc.title Optical Dynamics in the Ag/Α-ga<sub>2< Layer System en_US
dc.type Article en_US
dc.wos.citedbyCount 8
dspace.entity.type Publication
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