Electronic Properties of TiO2 Thin Films under UV Light Irradiation

被引：0
|
作者：
Watanabe, Y. [1 ]
Muramoto, Y. [1 ]
Shimizu, N. [1 ]
机构：
[1] Meijo Univ, Dept Elect & Elect Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan
来源：
2010 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTIC PHENOMENA | 2010年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
TiO2 has photocatalysis. When UV light irradiated, electron-hole pairs are generated in TiO2. The source of photocatalysis is oxidation and reduction reactions due to electrons and holes at the surface. In this paper, we tried to obtain the electronic properties such as resistivity, carrier density and mobility in anatase TiO2 thin films under UV light irradiation. The resistivity decreased with UV light intensity. Without UV light irradiation, the resistivity was over the measuring range. The measured values of the Hall voltage were not stable. We consider contributions to the Hall voltage of electrons and holes are canceled each other as an intrinsic semiconductor. It is also suggested that mobilities of electrons and holes have unstable behavior under the combination of magnetic field and UV light irradiation.
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页数：4
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