Effect of Incorporation of Silver on the Electrical Properties of Sol-Gel-Derived Titania Film |
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| Authors: | Hong Li Gaoling Zhao Bin Song Gaorong Han |
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| Institution: | (1) State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People’s Republic of China;(2) Department of Physics, Zhejiang University, Hangzhou, 310027, People’s Republic of China |
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| Abstract: | Metallic Ag nanoparticles-incorporating titania films were prepared using the sol-gel method. X-ray diffraction (XRD) patterns,
UV/Vis optical spectra and transmission electron microscopy (TEM) images were recorded to characterize the Ag/titania composite
films. Electrometer was used to estimate the resistance of Ag/titania composite film to understand the effect of the incorporation
of metallic Ag nanoparticles on the electrical properties of titania film. The results showed that metallic Ag nanoparticles
distributed randomly in titania film and most metallic Ag particles size was in the range of 5–15 nm. The agglomeration of
a small quantity of metallic Ag particles occurred and when the amount of Ag species was increased the agglomeration was enhanced.
The resistance of Ag/titania composite films decreased greatly compared with pure titania film. |
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| Keywords: | Composite materials Sol-gel TiO2 film Nanoparticle |
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