Photoconductive properties of titanium dioxide film modified by femtosecond laser irradiation

被引：5
|
作者：
Tsukamoto, M. [1 ]
Shinonaga, T. [2 ]
Takahashi, M. [3 ]
Fujita, M. [4 ]
Abe, N. [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
[3] Osaka Municipal Tech Res Inst, Joto Ku, Osaka 5368553, Japan
[4] Inst Laser Technol, Suita, Osaka 5650871, Japan
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2013年 / 110卷 / 03期
关键词：
TIO2; FILMS; ELECTRICAL-RESISTANCE;
D O I：
10.1007/s00339-012-7185-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) films were irradiated with a femtosecond laser to alter their photoconductive properties. The laser wavelength and pulse duration were 775 nm and 150 fs, respectively. The TiO2 films irradiated with the femtosecond laser were darkened without changing the topography of the TiO2 film surface. The electrical resistances of the films as a function of time were measured under visible-light illumination. The transient electrical resistances decreased as time was increased after turning on the light. There were two stages in the reduction process of the electrical resistance.
引用
收藏
页码：679 / 682
页数：4
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