Electrical transport properties of individual TiO2 nanowire in one dimension
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Date
2007Author
Sun Lan
孙岚
Zuo Juan
左娟
Lai Yue-Kun
赖跃坤
Nie Cha-Geng
聂茶庚
Lin Chang-Jian
林昌健
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- 化学化工-已发表论文 [14469]
Abstract
The anatase TiO2 nanowire arrays with 60 ran diameter and 20 nm diameter were prepared within the nanochannels of anodic aluminum oxide (AAO) template by an electrochemically induced sol-gel method. Atomic force microscopy (AFM) technique was applied to map topographic image at half-contact mode and to measure current-voltage characteristics of individual TiO2 nanowire at contact mode. The I-V characteristics of individual TiO2 nanowire by AFM revealed semiconductor characteristics. The bias voltage resulting in a measurable current on individual TiO2 nanowire was much lower than that on the bulk TiO2 materials, and its value increased with the diameter of individual nanowire decreasing.