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

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

25 Scopus citations

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.

Original language	English
Pages (from-to)	8173-8177
Number of pages	5
Journal	Thin Solid Films
Volume	519
Issue number	22
DOIs	https://doi.org/10.1016/j.tsf.2011.05.073
State	Published - 1 Sep 2011
Externally published	Yes

Keywords

Anodization
Carbon
Doping
Field emission
Nanotube arrays
Titanium dioxide

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10.1016/j.tsf.2011.05.073

Cite this

@article{a818e6c4883c441aa6a1c61333657fa2,

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",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

number = "22",

}

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

UR - https://www.scopus.com/pages/publications/80052127664

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

Abstract

Keywords

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