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Deposition of nanostructured Cds thin films by thermal evaporation method: Effect of substrate temperature
Faculty of Physics, Semnan University.
Department of Physics, University of Guilan, Rasht.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-2935-1165
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-1785-7177
2017 (English)In: Materials, ISSN 1996-1944, E-ISSN 1996-1944, Vol. 10, no 7, 773Article in journal (Refereed) Published
Abstract [en]

Nanocrystalline CdS thin films were grown on glass substrates by a thermal evaporation method in a vacuum of about 2 × 10-5 Torr at substrate temperatures ranging between 25 °C and 250 °C. The physical properties of the layers were analyzed by transmittance spectra, XRD, SEM, and four-point probe measurements, and exhibited strong dependence on substrate temperature. The XRD patterns of the films indicated the presence of single-phase hexagonal CdS with (002) orientation. The structural parameters of CdS thin films (namely crystallite size, number of grains per unit area, dislocation density and the strain of the deposited films) were also calculated. The resistivity of the as-deposited films were found to vary in the range 3.11-2.2 × 104 Ω·cm, depending on the substrate temperature. The low resistivity with reasonable transmittance suggest that this is a reliable way to fine-tune the functional properties of CdS films according to the specific application.

Place, publisher, year, edition, pages
MDPI AG , 2017. Vol. 10, no 7, 773
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Other Physics Topics
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Experimental physics
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URN: urn:nbn:se:ltu:diva-65048DOI: 10.3390/ma10070773ISI: 000406683000090PubMedID: 28773133OAI: oai:DiVA.org:ltu-65048DiVA: diva2:1131391
Note

Validerad; 2017; Nivå 2; 2017-08-14 (andbra)

Available from: 2017-08-14 Created: 2017-08-14 Last updated: 2017-11-29Bibliographically approved

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