Electrical conduction properties of ZnPc/TiO2 thin films |
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Authors: | S. Senthilarasu R. Sathyamoorthy S. Lalitha A. Subbarayan |
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Affiliation: | R & D Department of Physics, Kongunadu Arts and Science College, Coimbatore-29, Tamil Nadu, India |
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Abstract: | In this paper we have reported the electrical properties of Al/ZnPc–TiO2/Al thin film device. The composite layers were prepared by the vacuum evaporation of ZnPc and sol–gel-coated TiO2. The current–voltage characteristics are found to be Ohmic and non-Ohmic at low field and high field, respectively. The charge transport conduction appears to be Poole-Frankel type of conduction. The total number of interface states, which is responsible for the dispersion of capacitance, is found to be increasing with increase in bias voltage. |
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Keywords: | Organic– inorganic composite Zinc phthalocyanine Vacuum deposition Titanium dioxide Sol– gel Thin film |
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