Journal of Applied Science and Engineering

Published by Tamkang University Press

1.30

Impact Factor

2.10

CiteScore

Ching-Hua Wei1, Chin-Tu Lu1, Wu-Chung Sue1, Ching-Min Chang This email address is being protected from spambots. You need JavaScript enabled to view it.1 and Chun-Ko Chen1

1Department of Mechanical Engineering, Southern Taiwan University of Technology, Tainan, Taiwan 710, R.O.C.


 

Received: March 16, 2007
Accepted: May 4, 2007
Publication Date: June 1, 2007

Download Citation: ||https://doi.org/10.6180/jase.2007.10.2.16  


ABSTRACT


This paper reports the characteristic of titanium dioxide (TiO2) thin film prepared by sputtering on the ITO glass. The principal parameter in sputtering process is to change temperature of substrate holder in the sputtering chamber. Five different temperatures (22, 50, 100, 150 and 200 ºC) were set on the substrate holder. After preparing TiO2 thin film, the transparency and absorptive performance of TiO2 thin film between 200~450 nm were inspected by using UV-VIS spectrophotometer. The hydrophilic property of TiO2 thin film by UV-light irradiation was observed by using contact angle measurement. The results showed that all the thin films, manufactured at different temperature, had ability to absorb UV-light and to perform good transparency. The contact angle measurement showed the films made by the higher temperature of substrate holder can get better hydrophilic property.


Keywords: Substrate Temperature, Sputtering, TiO2, Hydrophilic Property, Contact Angle, UV-VIS Spectrophotometer


REFERENCES


  1. [1] Fujishima, A. and Honda, K., “Electrochemical Photolysis of Water at a Semiconductor Electrode,” Nature, Vol. 238, pp. 3738 (1972).
  2. [2] Kim, T. K., Lee, M. N., Lee, S. H., Park, Y. C., Jung, C. K. and Boo, J.-H., “Development of Surface Coating Technology of TiO2 Powder and Improvement of Photocatalytic Activity by Surface Modification,” Thin Solid Films, Vol. 475, pp. 171177 (2005).
  3. [3] Didier Robert and Sixto Malato, “Solar Photocatalysis: a Clean Process for Water Detoxification,” The Science of the Total Environment, Vol. 291, pp. 8597 (2002).
  4. [4] Wei, C.-H., Lu, C.-T., Huang, J.-Z., Sue, W.-C., Wu, S.-H. and Chang, C.-M., “Manufacturing of Microfluidic Biochip by Incorporating Nano Photo Catalyst Thin Film,” The 4th Conference on Precision Machinery and Manufacturing Technology, B23, Ping Tung, Taiwan (2006).
  5. [5] Wei, C.-H., Huang, J.-Z., Kuo, C.-Y. and Chen, H.-P., “The Investigation of Hydrophilic or Hydrophobic Characteristics for the Nano Titanium Dioxide Thin Film under Sunlight Exposure,” International Symposium on Nano Science and Technology, pp. 129131, Southern Taiwan University of Technology, Taiwan (2003).
  6. [6] Zheng, S. K., Xiang, G., Wang, T. M., Pan, F., Wang, C. and Hao, W. C., “Photocatalytic Activity Studies of TiO2 Thin Films Prepared by r.f. Magnetron Reactive Sputtering,” Vacuum, Vol. 72, pp. 7984 (2003).
  7. [7] Huang, J.-Z., Kuo, C.-Y. and Chen, H.-P., “The Investigation of Hydrophilic Characteristics for the Nano Titanium Dioxide Thin Film under Sunlight Exposure,” Proceedings of the 20th National Conference on Mechanical Engineering, The Chinese Society of Mechanical Engineers, Section E0223, pp. 439445, Taipei, Taiwan (2003).