| 单根TiO2纳米线一维电子输运性能 |
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| 引用本文： | 孙岚,左娟,赖跃坤,聂茶庚,林昌健.单根TiO2纳米线一维电子输运性能[J].物理化学学报,2007,23(10):1603-1606. |
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| 作者姓名： | 孙岚 左娟 赖跃坤 聂茶庚 林昌健 |
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| 作者单位： | State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005，P. R. China |
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| 摘 要： | 采用电化学诱导溶胶-凝胶法, 在多孔氧化铝模板(AAO)的纳米孔道内制备了直径分别为60 和20 nm的锐钛矿型TiO2纳米线阵列. 利用原子力显微镜(AFM)技术, 在半接触模式下得到了TiO2纳米线的形貌像, 在接触模式下测量了单根TiO2纳米线的I-V曲线. TiO2纳米线的电子输运性能表现为半导体的性质. TiO2纳米线的导通电压值明显小于TiO2块体,并且随着TiO2纳米线直径的减小, 导通电压值增大.
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| 关 键 词： | 单根一维纳米线 TiO2 电子输运性能 I-V曲线 |
| 收稿时间： | 2007-02-23 |
| 修稿时间： | 2007-02-23 |
Electrical Transport Properties of Individual TiO2 Nanowire in One Dimension |
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| SUN Lan,ZUO Juan,LAI Yue-Kun,NIE Cha-Geng,LIN Chang-Jian.Electrical Transport Properties of Individual TiO2 Nanowire in One Dimension[J].Acta Physico-Chimica Sinica,2007,23(10):1603-1606. |
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| Authors: | SUN Lan ZUO Juan LAI Yue-Kun NIE Cha-Geng LIN Chang-Jian |
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| Institution: | State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005，P. R. China |
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| Abstract: | The anatase TiO2 nanowire arrays with 60 nm 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. |
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| Keywords: | TiO2 |
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