EFFECT OF PASSING ELECTRIC CURRENT ON THE ELECTRICAL AND OPTICAL PROPERTIES OF ITO FILMS IN AIR

Yu Pei, Limei Lin, Weifeng Zheng, Yan Qu, Zhigao Huang and Fachun Lai ()
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Yu Pei: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Limei Lin: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Weifeng Zheng: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Yan Qu: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Zhigao Huang: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Fachun Lai: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China

Surface Review and Letters (SRL), 2009, vol. 16, issue 06, 887-893

Abstract: The effect of passing electric current on the electrical and optical properties of indium tin oxide (ITO) films in air has been studied. Resistivities of the ITO films deposited by direct current magnetron sputtering on glass substrates were about10.5 × 10-4Ωcm(group A) and4.3 × 10-4Ωcm(group B). A constant electric currentibetween 30 and 150 mA was applied to the films in air for 3 h. The results show that there is a critical current(icri)for each group sample.icriof group A is 60 mA andicriof group B is 90 mA. Wheni > icri, the electrical performance declines and optical transmittance increases for the electric annealed sample. However, both the electrical and optical performances may be improved for the annealed film wheni ≤ icri. It is found that the variations in electrical and optical properties of the films strongly depend on the electric power applied to ITO films.

Keywords: Annealing; electric current; indium tin oxide; optical and electrical properties (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0218625X09013438

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