Electron field emission from the carbon-doped TiO2 nanotube arrays

Lin Qing Wang; Cheng Wei Wang; Jian Biao Chen; Rui Sheng Guo; Feng Zhou; Wei Min Liu

doi:10.1016/j.tsf.2011.05.073

Electron field emission from the carbon-doped TiO₂ nanotube arrays

Lin Qing Wang, Cheng Wei Wang, Jian Biao Chen, Rui Sheng Guo, Feng Zhou, Wei Min Liu

科研成果: 期刊稿件 › 文章 › 同行评审

24 引用（Scopus）

摘要

The field-emission characteristics of the carbon-doped TiO₂ 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/cm² 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.

源语言	英语
页（从-至）	8173-8177
页数	5
期刊	Thin Solid Films
卷	519
期	22
DOI	https://doi.org/10.1016/j.tsf.2011.05.073
出版状态	已出版 - 1 9月 2011
已对外发布	是

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10.1016/j.tsf.2011.05.073

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title = "Electron field emission from the carbon-doped TiO2 nanotube arrays",

abstract = "The field-emission characteristics of the carbon-doped TiO2 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/cm2 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.",

keywords = "Anodization, Carbon, Doping, Field emission, Nanotube arrays, Titanium dioxide",

author = "Wang, {Lin Qing} and Wang, {Cheng Wei} and Chen, {Jian Biao} and Guo, {Rui Sheng} and Feng Zhou and Liu, {Wei Min}",

year = "2011",

month = sep,

day = "1",

doi = "10.1016/j.tsf.2011.05.073",

language = "英语",

volume = "519",

pages = "8173--8177",

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TY - JOUR

T1 - Electron field emission from the carbon-doped TiO2 nanotube arrays

AU - Wang, Lin Qing

AU - Wang, Cheng Wei

AU - Chen, Jian Biao

AU - Guo, Rui Sheng

AU - Zhou, Feng

AU - Liu, Wei Min

PY - 2011/9/1

Y1 - 2011/9/1

N2 - The field-emission characteristics of the carbon-doped TiO2 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/cm2 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.

AB - The field-emission characteristics of the carbon-doped TiO2 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/cm2 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.

KW - Anodization

KW - Carbon

KW - Doping

KW - Field emission

KW - Nanotube arrays

KW - Titanium dioxide

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U2 - 10.1016/j.tsf.2011.05.073

DO - 10.1016/j.tsf.2011.05.073

M3 - 文章

AN - SCOPUS:80052127664

SN - 0040-6090

VL - 519

SP - 8173

EP - 8177

JO - Thin Solid Films

JF - Thin Solid Films

IS - 22

ER -

Electron field emission from the carbon-doped TiO2 nanotube arrays

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Electron field emission from the carbon-doped TiO₂ nanotube arrays