Electron field emission from Fe-doped TiO2 nanotubes

Chih Chieh Wang; Kuan Wen Wang; Tsong Pyng Perng

doi:10.1063/1.3373607

Electron field emission from Fe-doped TiO₂ nanotubes

Chih Chieh Wang, Kuan Wen Wang, Tsong Pyng Perng

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

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 TiO ₂ nanotubes. A turn-on field at 12 V/μm and a maximum current density of 12 mA/ cm² at 19 V/μm 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.

Original language	English
Article number	143102
Journal	Applied Physics Letters
Volume	96
Issue number	14
DOIs	https://doi.org/10.1063/1.3373607
State	Published - 2010

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title = "Electron field emission from Fe-doped TiO2 nanotubes",

abstract = "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 TiO 2 nanotubes. A turn-on field at 12 V/μm and a maximum current density of 12 mA/ cm2 at 19 V/μm 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.",

author = "Wang, {Chih Chieh} and Wang, {Kuan Wen} and Perng, {Tsong Pyng}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under Contract No. NSC 94-2216-E-007-029 and by the Ministry of Education of Taiwan under Contract No. A-91-E-FA04-1-4.",

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T1 - Electron field emission from Fe-doped TiO2 nanotubes

AU - Wang, Chih Chieh

AU - Wang, Kuan Wen

AU - Perng, Tsong Pyng

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under Contract No. NSC 94-2216-E-007-029 and by the Ministry of Education of Taiwan under Contract No. A-91-E-FA04-1-4.

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N2 - 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 TiO 2 nanotubes. A turn-on field at 12 V/μm and a maximum current density of 12 mA/ cm2 at 19 V/μm 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.

AB - 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 TiO 2 nanotubes. A turn-on field at 12 V/μm and a maximum current density of 12 mA/ cm2 at 19 V/μm 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.

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SN - 0003-6951

VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Electron field emission from Fe-doped TiO2 nanotubes

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Electron field emission from Fe-doped TiO₂ nanotubes