Abstract

A novel technique for the fabrication of tin-doped indium oxide (ITO) fine patterning in sol-gel technology is presented in this paper. The fabricated ITO fine patterning could be obtained through a process which combines film fabrication with film etching. ITO films have good comprehensive property of visible transmittance and electrical conductivity, consequently they have been extensively used as coating electrodes. Indium nitrate (In(NO<sub>3</sub>)<sub>3</sub>.4.5H<sub>2</sub>O) and stannic chloride (SnCl<sub>4</sub>.5H<sub>2</sub>O) were used as starting materials which were modified with benzytone (BzAcH). The chelate complexes containing indium ions were produced during the process which of forming photosensitive ITO/BzAcH gel films through sol-gel technique. It was found that the gel films are sensitive to both the ultraviolet (UV) light irradiation and their solubility on solvents as well. For example, ethanol was reduced remarkably while the UV absorption peak disappeared with the dissociation of the chelate complexes correspondingly by means of UV-vis and IR spectrophotometers. Utilizing these characteristics, a fine pattern was obtained by irradiation of UV light on the ITO/BzAcH gel films through a pattern mask. of the fine patterned ITO films were heat treated at 500 °C for 15 min, the optical, electrical properties and the surface element components were examined by X-ray photoelectron spectroscopy (XPS) spectra in this work.

© 2006 IEEE

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J. Ceram. Soc. Jpn.

G. Zhao, N. Tohge, J. Ceram. Soc. Jpn. 106, 183 (1998).

J. Appl. Phys. Lett

C. C. Bowley, A. K. Fontecchio, G. P. Crawfod, J. Appl. Phys. Lett 76, 523 (2000).

C. C. Bowley, G. P. Craofod, J. Appl. Phys. Lett 76, 2235 (2000).

J. Electrochem.

S. K. Poznyak, A. J. Kulak, J. Electrochem. 1595 (2001).

Jpn. J. Appl. Phys.

G. Zhao, N. Tohge, J. Nishii, Jpn. J. Appl. Phys. 37, 1842 (1998).

Mater. Sci. Eng.

Z. Weihua, Z. Gaoyang, C. Zhiming, Mater. Sci. Eng. B99, 168 (2003).

Materials Res. Bull.

G. Zhao, N. Tohge, Materials Res. Bull. 33, 21 (1998).

OSA Trends in Optics and Photonics (TOP's)

G. Zhao, Y. Li, W. Zhang, W. Zhao, OSA Trends in Optics and Photonics (TOP's) 99, Photorefractive Effects, Materials, and Devices Proceedings Volume281 (2005).

Thin Solid Films

T. Kololuoma, A. H. O. Karkkainen, A. Tolonen, J. T. Rantala, Thin Solid Films 440, 184 (2003).

S. R. Ramanan, Thin Solid Films 389, 207 (2001).

D. Yu, W. Yu, D. Wang, Y. Qian, Thin Solid Films 419, 166 (2002).

S. S. Kim, S. Y. Choi, C. G. Park, H. W. Jin, Thin Solid Films 347, 155 (1999).

Other

J. F. Moulder, Handbook of X-ray Photoelectron Spectroscopy Perkin-Elmer Corp (Perkin-Elmer Corp, 1992).

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