Field emission from the structure of well-aligned TiO2/Ti nanotube arrays

Jian Biao Chen; Cheng Wei Wang; Bao Hong Ma; Yan Li; Jian Wang; Rui Sheng Guo; Wei Min Liu

doi:10.1016/j.tsf.2009.01.088

Field emission from the structure of well-aligned TiO₂/Ti nanotube arrays

Jian Biao Chen
, Cheng Wei Wang
, Bao Hong Ma
, Yan Li
, Jian Wang
, Rui Sheng Guo
, Wei Min Liu

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

46 Scopus citations

Abstract

Well-aligned TiO₂/Ti nanotube arrays were synthesized by anodic oxidation of titanium foil in 0.5 wt.% HF in various anodization voltages. The images of filed emission scanning electron microscopy indicate that the nanotubes structure parameters, such as diameter, wall thickness and density, can be controlled by adjusting the anodization voltage. The peaks at 25.3° and 48.0° of X-ray diffraction pattern illuminate that the TiO₂ nanotube arrays annealed at 500 °C are mainly in anatase phase. The filed emission (FE) properties of the samples were investigated. A turn-on electric field 7.8 V/μm, a field enhancement factors approximately 870 and a highest FE current density 3.4 mA/cm² were obtained. The emission current (2.3 mA/cm² at 18.8 V/μm) was quite stable within 480 min. The results show that the FE properties of TiO₂/Ti have much relation to the structure parameters.

Original language	English
Pages (from-to)	4390-4393
Number of pages	4
Journal	Thin Solid Films
Volume	517
Issue number	15
DOIs	https://doi.org/10.1016/j.tsf.2009.01.088
State	Published - 1 Jun 2009
Externally published	Yes

Keywords

Annealing
Anodic oxidation
Field emission
Scanning electron microscopy
TiO/Ti nanotube arrays
X-ray diffraction

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10.1016/j.tsf.2009.01.088

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@article{2acae44899654f2ea9413bee0ee68cba,

title = "Field emission from the structure of well-aligned TiO2/Ti nanotube arrays",

abstract = "Well-aligned TiO2/Ti nanotube arrays were synthesized by anodic oxidation of titanium foil in 0.5 wt.\% HF in various anodization voltages. The images of filed emission scanning electron microscopy indicate that the nanotubes structure parameters, such as diameter, wall thickness and density, can be controlled by adjusting the anodization voltage. The peaks at 25.3° and 48.0° of X-ray diffraction pattern illuminate that the TiO2 nanotube arrays annealed at 500 °C are mainly in anatase phase. The filed emission (FE) properties of the samples were investigated. A turn-on electric field 7.8 V/μm, a field enhancement factors approximately 870 and a highest FE current density 3.4 mA/cm2 were obtained. The emission current (2.3 mA/cm2 at 18.8 V/μm) was quite stable within 480 min. The results show that the FE properties of TiO2/Ti have much relation to the structure parameters.",

keywords = "Annealing, Anodic oxidation, Field emission, Scanning electron microscopy, TiO/Ti nanotube arrays, X-ray diffraction",

author = "Chen, \{Jian Biao\} and Wang, \{Cheng Wei\} and Ma, \{Bao Hong\} and Yan Li and Jian Wang and Guo, \{Rui Sheng\} and Liu, \{Wei Min\}",

year = "2009",

month = jun,

day = "1",

doi = "10.1016/j.tsf.2009.01.088",

language = "英语",

volume = "517",

pages = "4390--4393",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Field emission from the structure of well-aligned TiO2/Ti nanotube arrays

AU - Chen, Jian Biao

AU - Wang, Cheng Wei

AU - Ma, Bao Hong

AU - Li, Yan

AU - Wang, Jian

AU - Guo, Rui Sheng

AU - Liu, Wei Min

PY - 2009/6/1

Y1 - 2009/6/1

N2 - Well-aligned TiO2/Ti nanotube arrays were synthesized by anodic oxidation of titanium foil in 0.5 wt.% HF in various anodization voltages. The images of filed emission scanning electron microscopy indicate that the nanotubes structure parameters, such as diameter, wall thickness and density, can be controlled by adjusting the anodization voltage. The peaks at 25.3° and 48.0° of X-ray diffraction pattern illuminate that the TiO2 nanotube arrays annealed at 500 °C are mainly in anatase phase. The filed emission (FE) properties of the samples were investigated. A turn-on electric field 7.8 V/μm, a field enhancement factors approximately 870 and a highest FE current density 3.4 mA/cm2 were obtained. The emission current (2.3 mA/cm2 at 18.8 V/μm) was quite stable within 480 min. The results show that the FE properties of TiO2/Ti have much relation to the structure parameters.

AB - Well-aligned TiO2/Ti nanotube arrays were synthesized by anodic oxidation of titanium foil in 0.5 wt.% HF in various anodization voltages. The images of filed emission scanning electron microscopy indicate that the nanotubes structure parameters, such as diameter, wall thickness and density, can be controlled by adjusting the anodization voltage. The peaks at 25.3° and 48.0° of X-ray diffraction pattern illuminate that the TiO2 nanotube arrays annealed at 500 °C are mainly in anatase phase. The filed emission (FE) properties of the samples were investigated. A turn-on electric field 7.8 V/μm, a field enhancement factors approximately 870 and a highest FE current density 3.4 mA/cm2 were obtained. The emission current (2.3 mA/cm2 at 18.8 V/μm) was quite stable within 480 min. The results show that the FE properties of TiO2/Ti have much relation to the structure parameters.

KW - Annealing

KW - Anodic oxidation

KW - Field emission

KW - Scanning electron microscopy

KW - TiO/Ti nanotube arrays

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/65449155473

U2 - 10.1016/j.tsf.2009.01.088

DO - 10.1016/j.tsf.2009.01.088

M3 - 文章

AN - SCOPUS:65449155473

SN - 0040-6090

VL - 517

SP - 4390

EP - 4393

JO - Thin Solid Films

JF - Thin Solid Films

IS - 15

ER -

Field emission from the structure of well-aligned TiO₂/Ti nanotube arrays

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Keywords

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