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Materials Science-Poland

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IMPACT FACTOR 2016: 0.610

CiteScore 2016: 0.64

SCImago Journal Rank (SJR) 2015: 0.226
Source Normalized Impact per Paper (SNIP) 2015: 0.431

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Online
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2083-134X
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Fabrication and properties of zinc oxide thin film prepared by sol-gel dip coating method

Zohra Nazir Kayani / Maryam Iqbal / Saira Riaz / Rehana Zia / Shahzad Naseem
Published Online: 2016-08-30 | DOI: https://doi.org/10.1515/msp-2015-0085

Abstract

ZnO thin films were deposited on a glass substrate by dip coating technique using a solution of zinc acetate, ethanol and distilled water. Optical constants, such as refractive index n and extinction coefficient k. were determined from transmittance spectrum in the ultraviolet-visible-near infrared (UV-Vis-NIR) regions using envelope methods. The films were found to exhibit high transmittance, low absorbance and low reflectance in the visible regions. Absorption coefficient α and the thickness of the film t were calculated from interference of transmittance spectra. The direct optical band gap of the films was in the range of 3.98 to 3.54 eV and the thickness of the films was evaluated in the range of 173 to 323 nm, while the refractive index slightly varied in the range of 1.515 to 1.622 with an increase in withdrawal speed from 100 to 250 mm/s. The crystallographic structure of the films was analyzed with X-ray diffractometer. The films were amorphous in nature.

Keywords: thin films; sol-gel; X-ray diffraction; optical properties

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About the article

Received: 2014-10-05

Accepted: 2015-05-21

Published Online: 2016-08-30

Published in Print: 2015-09-01


Citation Information: Materials Science-Poland, ISSN (Online) 2083-134X, DOI: https://doi.org/10.1515/msp-2015-0085.

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© 2016. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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