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Structural, Optical and Electrochromic Properties of WO3 Thin Films Prepared by Chemical Spray Pyrolysis Versus Spin Coating Technique |
S. Morkoç Karadeniz1*, Demet Tatar2, M. Ertuğrul3, A. E. Ekinci1 |
1. Department of Physics, Erzincan University, Erzincan 24000, Turkey
2. Pasinler Vocational School, Atatürk University,Erzurum 25040, Turkey
3. Department of Electrical and Electronics Engineering,Atatürk University, Erzurum 25040, Turkey |
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Abstract In this study, Tungsten Oxide (WO3) thin films were prepared by Chemical Spray Pyrolysis (CSP) and Spin Coating (SC) techniques and it was investigated effects of technique and parameter on the films. WO3 thin films were deposited on ITO (Indium Tin Oxide) coated glasses. The structural, optical and electrochromic properties of the WO3 thin films were characterized by XRD, SEM, UV, and CV measurements. The sharpest (200) peak was observed in the XRD spectra and optical band gaps were calculated around 2.6~3.1 eV via UV-Vis spectra for all of the samples. Micro fibrous reticulated surface (filamentous like) morphology for the films deposited by CSP technique and smooth surface morphology with high optical transmittance for the film deposited by SC Technique were obtained from SEM images. In addition to these results, it was revealed that all the samples exhibit good electrochromic performance.
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Received: 2016-02-05
Accepted: 2016-10-28
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Corresponding Authors:
S. Morkoç Karadeniz
E-mail: morkocsibel@gmail.com; smorkoc@erzincan.edu.trIntroduction
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