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Electron field emission from the carbon-doped TiO 2 nanotube arrays

The field-emission characteristics of the carbon-doped TiO 2 nanotube arrays (TNAs), which can be obtained by a heat treatment of the as-fabricated TNAs under a continuous argon and acetylene flux, were investigated. The morphology, crystalline structure, and composition of the as-grown specimens we... Full description

Journal Title: Thin Solid Films 2011, Vol.519(22), pp.8173-8177
Main Author: Wang, Lin-Qing
Other Authors: Wang, Cheng-Wei , Chen, Jian-Biao , Guo, Rui-Sheng , Zhou, Feng , Liu, Wei-Min
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0040-6090 ; E-ISSN: 1879-2731 ; DOI: 10.1016/j.tsf.2011.05.073
Link: http://dx.doi.org/10.1016/j.tsf.2011.05.073
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recordid: elsevier_sdoi_10_1016_j_tsf_2011_05_073
title: Electron field emission from the carbon-doped TiO 2 nanotube arrays
format: Article
creator:
  • Wang, Lin-Qing
  • Wang, Cheng-Wei
  • Chen, Jian-Biao
  • Guo, Rui-Sheng
  • Zhou, Feng
  • Liu, Wei-Min
subjects:
  • Field Emission
  • Titanium Dioxide
  • Nanotube Arrays
  • Carbon
  • Doping
  • Anodization
  • Field Emission
  • Titanium Dioxide
  • Nanotube Arrays
  • Carbon
  • Doping
  • Anodization
  • Engineering
  • Physics
ispartof: Thin Solid Films, 2011, Vol.519(22), pp.8173-8177
description: The field-emission characteristics of the carbon-doped TiO 2 nanotube arrays (TNAs), which can be obtained by a heat treatment of the as-fabricated TNAs under a continuous argon and acetylene flux, were investigated. The morphology, crystalline structure, and composition of the as-grown specimens were characterized by the use of field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. It was found that the samples' turn-on electric field is reduced from 21.9 to 5.0 V/μm and the field-emission current density rapidly reaches about 9.0 mA/cm 2 at 11.8 V/μm after carbon doping. The dramatically improved field-emission characteristics would be mainly attributed to the reduced work function and the enhanced conductivity due to the carbon doping into TNAs.
language: eng
source:
identifier: ISSN: 0040-6090 ; E-ISSN: 1879-2731 ; DOI: 10.1016/j.tsf.2011.05.073
fulltext: fulltext
issn:
  • 0040-6090
  • 00406090
  • 1879-2731
  • 18792731
url: Link


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titleElectron field emission from the carbon-doped TiO 2 nanotube arrays
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ispartofThin Solid Films, 2011, Vol.519(22), pp.8173-8177
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subjectField Emission ; Titanium Dioxide ; Nanotube Arrays ; Carbon ; Doping ; Anodization ; Field Emission ; Titanium Dioxide ; Nanotube Arrays ; Carbon ; Doping ; Anodization ; Engineering ; Physics
descriptionThe field-emission characteristics of the carbon-doped TiO 2 nanotube arrays (TNAs), which can be obtained by a heat treatment of the as-fabricated TNAs under a continuous argon and acetylene flux, were investigated. The morphology, crystalline structure, and composition of the as-grown specimens were characterized by the use of field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. It was found that the samples' turn-on electric field is reduced from 21.9 to 5.0 V/μm and the field-emission current density rapidly reaches about 9.0 mA/cm 2 at 11.8 V/μm after carbon doping. The dramatically improved field-emission characteristics would be mainly attributed to the reduced work function and the enhanced conductivity due to the carbon doping into TNAs.
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The field-emission characteristics of the carbon-doped TiO 2 nanotube arrays (TNAs), which can be obtained by a heat treatment of the as-fabricated TNAs under a continuous argon and acetylene flux, were investigated. The morphology, crystalline structure, and composition of the as-grown specimens were characterized by the use of field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. It was found that the samples' turn-on electric field is reduced from 21.9 to 5.0 V/μm and the field-emission current density rapidly reaches about 9.0 mA/cm 2 at 11.8 V/μm after carbon doping. The dramatically improved field-emission characteristics would be mainly attributed to the reduced work function and the enhanced conductivity due to the carbon doping into TNAs.

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abstract

The field-emission characteristics of the carbon-doped TiO 2 nanotube arrays (TNAs), which can be obtained by a heat treatment of the as-fabricated TNAs under a continuous argon and acetylene flux, were investigated. The morphology, crystalline structure, and composition of the as-grown specimens were characterized by the use of field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. It was found that the samples' turn-on electric field is reduced from 21.9 to 5.0 V/μm and the field-emission current density rapidly reaches about 9.0 mA/cm 2 at 11.8 V/μm after carbon doping. The dramatically improved field-emission characteristics would be mainly attributed to the reduced work function and the enhanced conductivity due to the carbon doping into TNAs.

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lad01Thin Solid Films