Field emission from zinc oxide nanoneedles on plastic substrates

H. Y. Yang; Shu Ping Lau; Siu Fung Yu; L. Huang; M. Tanemura; J. Tanaka; T. Okita; H. H. Hng

doi:10.1088/0957-4484/16/8/053

Field emission from zinc oxide nanoneedles on plastic substrates

H. Y. Yang, Shu Ping Lau, Siu Fung Yu, L. Huang, M. Tanemura, J. Tanaka, T. Okita, H. H. Hng

Research output: Journal article publication › Journal article › Academic research › peer-review

66 Citations (Scopus)

Abstract

The electron field emission from zinc oxide (ZnO) nanoneedles on flexible plastic substrates is reported. ZnO thin films were first deposited on plastic substrates at 200 °C using a filtered cathodic vacuum arc technique; the films were then bombarded by Ar+ ion. After ion beam irradiation, high-density ZnO nanoneedle arrays were selectively formed on the thin films. The average diameter and length of the ZnO nanoneedles is around 100 and 700 nm respectively. Field emission measurement showed a fairly low threshold voltage of 4.1 V νm-1 with a current density of 1 νA cm-2. The emission current density can be as high as 1 mA cm-2 at 9.6 V νm-1. The result establishes a method of fabricating a flexible field emitter, which should find practical applications in vacuum electronic devices.

Original language	English
Pages (from-to)	1300-1303
Number of pages	4
Journal	Nanotechnology
Volume	16
Issue number	8
DOIs	https://doi.org/10.1088/0957-4484/16/8/053
Publication status	Published - 1 Aug 2005
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/16/8/053

Cite this

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title = "Field emission from zinc oxide nanoneedles on plastic substrates",

abstract = "The electron field emission from zinc oxide (ZnO) nanoneedles on flexible plastic substrates is reported. ZnO thin films were first deposited on plastic substrates at 200 °C using a filtered cathodic vacuum arc technique; the films were then bombarded by Ar+ ion. After ion beam irradiation, high-density ZnO nanoneedle arrays were selectively formed on the thin films. The average diameter and length of the ZnO nanoneedles is around 100 and 700 nm respectively. Field emission measurement showed a fairly low threshold voltage of 4.1 V νm-1 with a current density of 1 νA cm-2. The emission current density can be as high as 1 mA cm-2 at 9.6 V νm-1. The result establishes a method of fabricating a flexible field emitter, which should find practical applications in vacuum electronic devices.",

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T1 - Field emission from zinc oxide nanoneedles on plastic substrates

AU - Yang, H. Y.

AU - Lau, Shu Ping

AU - Yu, Siu Fung

AU - Huang, L.

AU - Tanemura, M.

AU - Tanaka, J.

AU - Okita, T.

AU - Hng, H. H.

PY - 2005/8/1

Y1 - 2005/8/1

N2 - The electron field emission from zinc oxide (ZnO) nanoneedles on flexible plastic substrates is reported. ZnO thin films were first deposited on plastic substrates at 200 °C using a filtered cathodic vacuum arc technique; the films were then bombarded by Ar+ ion. After ion beam irradiation, high-density ZnO nanoneedle arrays were selectively formed on the thin films. The average diameter and length of the ZnO nanoneedles is around 100 and 700 nm respectively. Field emission measurement showed a fairly low threshold voltage of 4.1 V νm-1 with a current density of 1 νA cm-2. The emission current density can be as high as 1 mA cm-2 at 9.6 V νm-1. The result establishes a method of fabricating a flexible field emitter, which should find practical applications in vacuum electronic devices.

AB - The electron field emission from zinc oxide (ZnO) nanoneedles on flexible plastic substrates is reported. ZnO thin films were first deposited on plastic substrates at 200 °C using a filtered cathodic vacuum arc technique; the films were then bombarded by Ar+ ion. After ion beam irradiation, high-density ZnO nanoneedle arrays were selectively formed on the thin films. The average diameter and length of the ZnO nanoneedles is around 100 and 700 nm respectively. Field emission measurement showed a fairly low threshold voltage of 4.1 V νm-1 with a current density of 1 νA cm-2. The emission current density can be as high as 1 mA cm-2 at 9.6 V νm-1. The result establishes a method of fabricating a flexible field emitter, which should find practical applications in vacuum electronic devices.

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DO - 10.1088/0957-4484/16/8/053

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JO - Nanotechnology

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Field emission from zinc oxide nanoneedles on plastic substrates

Abstract

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