Optical and Electrical Properties of Transparent Conductive ITO Thin Films under Proton Radiation with 100 keV


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Under the simulation environment for the vacuum and heat sink in space, the changes in optical and electrical properties of transparent conductive indium tin oxide (ITO) thin films induced by radiation of protons with 100 keV were studied. The ITO thin films were deposited on JGS1 quartz substrate by a sol-gel method. The sheet resistance and transmittance spectra of the ITO thin films were measured using the four-point probe method and a spectrophotometer, respectively. The surface morphology was analyzed by AFM. The experimental results showed that the electrical and optical performances of the ITO thin films were closely related to the irradiation fluence. When the fluence exceeded a given value 2×1016 cm-2, the sheet resistance increased obviously and the optical transmittance decreased. The AFM analysis indicated that the grain size of the ITO thin films diminished. The studies about the radiation effect on ITO thin films will help to predict performance evolution of the second surface mirrors on satellites under space radiation environment.



Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie




Q. Wei et al., "Optical and Electrical Properties of Transparent Conductive ITO Thin Films under Proton Radiation with 100 keV", Materials Science Forum, Vols. 475-479, pp. 3697-3700, 2005

Online since:

January 2005




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DOI: https://doi.org/10.1016/s0040-6090(96)09060-8

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