Electron field emission from Fe-doped TiO2 nanotubes

被引：57

作者：

Wang, Chih-Chieh ^{[1
]}

Wang, Kuan-Wen ^{[1
,2
]}

Perng, Tsong-Pyng ^{[1
,3
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Natl Cent Univ, Inst Mat Sci & Engn, Chungli 320, Taiwan

[3] Yuan Ze Univ, Dept Chem Engn & Mat Sci, Chungli 320, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 14期

关键词：

ALIGNED CARBON NANOFIBERS; THIN-FILMS; TITANIA NANOTUBES; TEMPERATURE; NANOWIRES; PHOTOCATALYSIS; MORPHOLOGY;

D O I：

10.1063/1.3373607

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Titanium dioxide nanotubes were prepared by refluxing TiO2 in 10 M NaOH at 200 C for 12 h. The light absorption edge was slightly shifted to a longer wavelength when 0.025 mol % of iron was incorporated to TiO2 nanotubes. A turn-on field at 12 V/mu m and a maximum current density of 12 mA/cm(2) at 19 V/mu m was observed for the Fe-doped but not for pure TiO2. The field emission behavior can be correlated with the geometry and electronic states of the nanotubes. (C) 2010 American Institute of Physics.[doi: 10.1063/1.3373607]

引用

页数：3

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