Volume 12, Issue 4 (Iranian Journal of Physics Research, Winter 2013)                   IJPR 2013, 12(4): 323-330 | Back to browse issues page

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Eskandari F, Ranjbar M, Kameli P, Salamati H. The effect of laser irradiation on electrical and structural properties of ZnO thin films. IJPR. 2013; 12 (4) :323-330
URL: http://ijpr.iut.ac.ir/article-1-1226-en.html
Isfahan University of technology
Abstract:   (9048 Views)

 In this paper, ZnO thin film was prepared by sol-gel process on glass substrates. The deposited films were dried at 100 and 240 ˚C and then annealed at 300, 400 and 500 ˚C. The two-probe measurement showed that resistance of as-prepared films is very high. The KrF excimer (λ=248 nm) laser irradiation with 1000 pulses, frequency of 1 Hz and 90 mJ/cm2 energy on surface of film resulted in the reduction of the films electrical resistance. X-ray diffraction (XRD) patterns confirmed the improved hexagonal wurtzite structure of film, and AFM and FE-SEM analyses showed regular and spherical grain was formed on the surface. The particle size was increased from ~10 to ~30 nm after leaser irradiation. Generally, it was showed that electrical, structural and morphological properties of films improve considerably by laser irradiation.

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Type of Study: Research | Subject: General

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