Stability Studies on Optical and Structure Properties of Zinc Oxide Thin Films Exposed to Different Environment

Abstract:

The properties of zinc oxide thin films were prepared by sol-gel spin-coating method have been presented. This study based on optical and electrical properties of ZnO thin film. The effects of annealing temperatures that exposed with two environments properties have been investigated. Environments exposed in room (27°C) and hot (80°C) temperatures which are stored by various days. Solution preparation, thin film deposition and characterization process were involved in this project. The ZnO films were characterized using UV-Vis-NIR spectrophotometer for optical properties. From that equipment, the percentage of transmittance (%) and absorption coefficient spectra were obtained. With two environments showed have different absorption coefficient are reveal and all films have low absorbance in visible and near infrared (IR) region but have high UV absorption properties. From SEM investigations the surface morphology of ZnO thin film shows the particles size become smaller and denser in hot temperatures while in room temperatures have porosity between particles.

• Periodical: Advanced Materials Research (Volume 667)
• Pages: 549-552
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.667.549
• Online since: March 2013
• Authors: A.S.M. Rodzi, Mohamad Hafiz Mamat, M.N. Berhan, Mohamad Rusop Mahmood
• Keywords: Hot Temperatures, Optical Property, Room Temperatures, Sol-Gel Method, Spin-Coating Technique, Surface Morphology, Zinc Oxide (ZnO)

References

[1] R.M. Schaffert, Electrography, The Focal Press, London, (1971).

[2] G. Srinivasan, N. Gopalakrishnan, Y.S. Yu, R. Kesavamoorthy, J. Kumar, Superlattices and Microstructures 43 (2008) 113.

[3] Ghosh R., Paul G.K., Basak D., Effect of thermal annealing treatment on structural, electrical and optical properties of transparent sol–gel ZnO thin films, Materials Research Bulletin 40(11) (2005) 1905-(1914).

DOI: 10.1016/j.materresbull.2005.06.010

[4] Lou Xiao-bo, Shen Hong-lie, Zhang Hui, Li Bin-bin, Optical properties of nanosized ZnO films prepared by sol-gel process, Materials Research Bulletin (2007) 814-817.

[5] G. Srinivasan, J. Kumar, Optical and structural characterisation of zinc oxide thin films prepared by sol-gel process, Materials Research Bulletin 41(9) (2006) 893-896.

DOI: 10.1002/crat.200510690

[6] Y. Natsume, H. Sakata, Thin Solid Films 372 (2000) 20.

[7] Xu Z. Q, Deng H., Li Y., Guo Q.H., Li Y.R., Characteristics of Al-doped c-axis orientation ZnO thin films prepared by the sol–gel method, Materials Research Bulletin 41(2) (2006) 354−358.

DOI: 10.1016/j.materresbull.2005.08.014

[8] Wang M.S., Lee K.E., Hahn S.H., Kim E.J., Kim S., Chung J.S., Shin E.W., Park C., Optical and photoluminescence properties of sol-gel Al-doped ZnO thin films, Materials Letters 61 (2007) 1118-1121.

DOI: 10.1016/j.matlet.2006.06.065

[9] Kim Y. S, Tai W.P., Electrical and optical properties of Al-doped ZnO thin films by sol–gel process, Applied Surface Science 253(11) (2007) 4911-4916.

DOI: 10.1016/j.apsusc.2006.10.068