This research work examines the structural and optical properties of ZnO thin films. Deposition were done by spin coating of solution of Zinc oxide onto pre-cleaned glass substrate at 4000 rpm for 30 sec using spin-coater under ambient condition at room temperature in order to form desired thickness of the film on the substrate. Post- deposition thermal annealing at different range of temperatures from 150°C to 600°C with steps of 50°C was carried out on the samples. The impact of thermal annealing on optical properties of the deposited thin film was investigated using UV-VIS spectrophotometer and scanning Electron Microscope for the morphology. The optical transmittance, reflectance, absorbance were recorded which was used to evaluate the optical band gap of Zinc oxide. Observation shows that band gap energy reduces as annealing temperature is increased from 150°C to 600°C. Observation made on the morphology using SEM model ASPEX 3020 showed that as the temperature increases the surface of the sample roughness increases. It was deduced that as the annealing temperature is increased the surface roughness increases. This may be due to increase in grain size with increase in annealing temperature. The band gap energy decreases as the annealing temperature increases.
| Published in | Journal of Photonic Materials and Technology (Volume 3, Issue 3) |
| DOI | 10.11648/j.jmpt.20170303.11 |
| Page(s) | 20-28 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Spin-Coating, Thermal Annealing, Zinc Oxide, Morphology, Optical Properties
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APA Style
Sunday Wilson Balogun, Yekini Kolawole Sanusi, Adebayo Olaniyi Aina. (2017). Impact of Post- Deposition Heat Treatment on the Morphology and Optical Properties of Zinc Oxide (ZnO) Thin Film Prepared by Spin-Coating Technique. Journal of Photonic Materials and Technology, 3(3), 20-28. https://doi.org/10.11648/j.jmpt.20170303.11
ACS Style
Sunday Wilson Balogun; Yekini Kolawole Sanusi; Adebayo Olaniyi Aina. Impact of Post- Deposition Heat Treatment on the Morphology and Optical Properties of Zinc Oxide (ZnO) Thin Film Prepared by Spin-Coating Technique. J. Photonic Mater. Technol. 2017, 3(3), 20-28. doi: 10.11648/j.jmpt.20170303.11
AMA Style
Sunday Wilson Balogun, Yekini Kolawole Sanusi, Adebayo Olaniyi Aina. Impact of Post- Deposition Heat Treatment on the Morphology and Optical Properties of Zinc Oxide (ZnO) Thin Film Prepared by Spin-Coating Technique. J Photonic Mater Technol. 2017;3(3):20-28. doi: 10.11648/j.jmpt.20170303.11
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Download@article{10.11648/j.jmpt.20170303.11,
author = {Sunday Wilson Balogun and Yekini Kolawole Sanusi and Adebayo Olaniyi Aina},
title = {Impact of Post- Deposition Heat Treatment on the Morphology and Optical Properties of Zinc Oxide (ZnO) Thin Film Prepared by Spin-Coating Technique},
journal = {Journal of Photonic Materials and Technology},
volume = {3},
number = {3},
pages = {20-28},
doi = {10.11648/j.jmpt.20170303.11},
url = {https://doi.org/10.11648/j.jmpt.20170303.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jmpt.20170303.11},
abstract = {This research work examines the structural and optical properties of ZnO thin films. Deposition were done by spin coating of solution of Zinc oxide onto pre-cleaned glass substrate at 4000 rpm for 30 sec using spin-coater under ambient condition at room temperature in order to form desired thickness of the film on the substrate. Post- deposition thermal annealing at different range of temperatures from 150°C to 600°C with steps of 50°C was carried out on the samples. The impact of thermal annealing on optical properties of the deposited thin film was investigated using UV-VIS spectrophotometer and scanning Electron Microscope for the morphology. The optical transmittance, reflectance, absorbance were recorded which was used to evaluate the optical band gap of Zinc oxide. Observation shows that band gap energy reduces as annealing temperature is increased from 150°C to 600°C. Observation made on the morphology using SEM model ASPEX 3020 showed that as the temperature increases the surface of the sample roughness increases. It was deduced that as the annealing temperature is increased the surface roughness increases. This may be due to increase in grain size with increase in annealing temperature. The band gap energy decreases as the annealing temperature increases.},
year = {2017}
}
TY - JOUR T1 - Impact of Post- Deposition Heat Treatment on the Morphology and Optical Properties of Zinc Oxide (ZnO) Thin Film Prepared by Spin-Coating Technique AU - Sunday Wilson Balogun AU - Yekini Kolawole Sanusi AU - Adebayo Olaniyi Aina Y1 - 2017/12/26 PY - 2017 N1 - https://doi.org/10.11648/j.jmpt.20170303.11 DO - 10.11648/j.jmpt.20170303.11 T2 - Journal of Photonic Materials and Technology JF - Journal of Photonic Materials and Technology JO - Journal of Photonic Materials and Technology SP - 20 EP - 28 PB - Science Publishing Group SN - 2469-8431 UR - https://doi.org/10.11648/j.jmpt.20170303.11 AB - This research work examines the structural and optical properties of ZnO thin films. Deposition were done by spin coating of solution of Zinc oxide onto pre-cleaned glass substrate at 4000 rpm for 30 sec using spin-coater under ambient condition at room temperature in order to form desired thickness of the film on the substrate. Post- deposition thermal annealing at different range of temperatures from 150°C to 600°C with steps of 50°C was carried out on the samples. The impact of thermal annealing on optical properties of the deposited thin film was investigated using UV-VIS spectrophotometer and scanning Electron Microscope for the morphology. The optical transmittance, reflectance, absorbance were recorded which was used to evaluate the optical band gap of Zinc oxide. Observation shows that band gap energy reduces as annealing temperature is increased from 150°C to 600°C. Observation made on the morphology using SEM model ASPEX 3020 showed that as the temperature increases the surface of the sample roughness increases. It was deduced that as the annealing temperature is increased the surface roughness increases. This may be due to increase in grain size with increase in annealing temperature. The band gap energy decreases as the annealing temperature increases. VL - 3 IS - 3 ER -
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