Cd-Doping Effects on the Properties of Polycrystalline Α-in<sub>2</Sub>se<sub>3< Thin Films

dc.authorwosid Qasrawi, Atef/R-4409-2019
dc.contributor.author Qasrawi, AF
dc.contributor.other Department of Electrical & Electronics Engineering
dc.date.accessioned 2024-10-06T10:57:31Z
dc.date.available 2024-10-06T10:57:31Z
dc.date.issued 2002
dc.department Atılım University en_US
dc.department-temp Atilim Univ, Fac Engn, TR-06836 Ankara, Turkey en_US
dc.description.abstract The X-ray diffraction has revealed that the polycrystalline hexagonal structured alpha-In2Se3 thin films grown at substrate temperature of 200degreesC with the unit cell parameters a=4.03degreesA and c=19.23degreesA becomes polycrystalline hexagonal structured InSe with a unit cell parameters of a=4.00degreesA and c=16.63degreesA by Cd-doping. The analysis of the conductivity temperature dependence in the range 300-40 K revealed that the thermionic emission of charged carriers and the variable range hopping are the predominant conduction mechanism above and below 100 K, respectively. Hall measurements revealed that the mobility is limited by the scattering of charged carriers through the grain boundaries above 200 K and 120 K for the undoped and Cd-doped samples, respectively. The photocurrent (I-ph) increases with increasing illumination intensity (T) and decreasing temperature up to a maximum temperature of similar to100 K, below which I-ph is temperature invariant. It is found to have the monomolecular and bimolccular recombination characters at low and high illumination intensities, respectively. The Cd-doping increases the density of trapping states that changes the position of the dark Fermi level leading to the deviation from linearity in the dependence of I-ph on F at low illumination intensities. en_US
dc.description.woscitationindex Science Citation Index Expanded
dc.identifier.citationcount 12
dc.identifier.endpage 390 en_US
dc.identifier.issn 0232-1300
dc.identifier.issue 4 en_US
dc.identifier.scopusquality Q3
dc.identifier.startpage 378 en_US
dc.identifier.uri https://hdl.handle.net/20.500.14411/8730
dc.identifier.volume 37 en_US
dc.identifier.wos WOS:000174944700007
dc.identifier.wosquality Q3
dc.institutionauthor Qasrawı, Atef Fayez Hasan
dc.language.iso en en_US
dc.publisher Wiley-v C H verlag Gmbh en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject thin film en_US
dc.subject XRD en_US
dc.subject conductivity en_US
dc.subject mobility en_US
dc.subject photocurrent en_US
dc.subject monomolecular en_US
dc.subject bimolecular en_US
dc.title Cd-Doping Effects on the Properties of Polycrystalline Α-in<sub>2</Sub>se<sub>3< Thin Films en_US
dc.type Article en_US
dc.wos.citedbyCount 11
dspace.entity.type Publication
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