Effect of thermal annealing on the structural and optical properties of nanostructured zinc oxide thin films prepared by pulsed laser ablation

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dc.contributor.authorVinodkumar, R
dc.contributor.authorLethy, KJ
dc.contributor.authorBeena, D
dc.contributor.authorSatyanarayana, M
dc.contributor.authorJayasree, RS
dc.contributor.authorGanesan, V
dc.contributor.authorNayar, VU
dc.contributor.authorPillai, VPM
dc.date.accessioned2017-03-10T03:26:28Z
dc.date.available2017-03-10T03:26:28Z
dc.date.issued2009
dc.description.abstractZinc oxide (ZnO) films are prepared by pulsed laser ablation, on an optically flat quartz substrate for different deposition time. The influence of annealing temperature, on the structural and optical properties of ZnO films is investigated systematically using X-ray diffraction (XRD), energy dispersive Xray analysis (EDX), scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman spectra, UV-vis spectroscopy and photoluminescence spectroscopy (PL). The XRD pattern shows that the as-deposited films are amorphous and the annealed films are polycrystalline. The average size of the crystalline grains varies from 9 to 26 nm in the films. The SEM and AFM images reveal uniform distribution of grains in the films and the grains are in the nanoscale dimension. Raman spectra suggest the hexagonal wurtzite phase for the ZnO films. The UV-visible spectra show an increase in transmittance with annealing temperature. The observation of very intense PL emission from the films annealed at 773 K, suggest the suitability of these films for applications as light emitters in the visible region. The ability to produce the stochiometric ZnO thin films with reproducible structural, morphological and optical characteristics should be useful as a suitable window material for practical industrial solar cell and display devices. (C) 2008 Elsevier B.V. All rights reserved.
dc.identifier.citation93 ,1;74-78en_US
dc.identifier.uri10.1016/j.solmat.2008.04.014
dc.identifier.urihttps://dspace.sctimst.ac.in/handle/123456789/9661
dc.publisherSOLAR ENERGY MATERIALS AND SOLAR CELLS
dc.subjectEnergy & Fuels; Materials Science; Physics
dc.titleEffect of thermal annealing on the structural and optical properties of nanostructured zinc oxide thin films prepared by pulsed laser ablation
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