Cold cathodes for applications in poor vacuum and low pressure air environments: Carbon nanotubes versus ZnO nanoneedles

A. J. Cheng; D. Wang; H. W. Seo; C. Liu; M. Park; Y. Tzeng

doi:10.1016/j.diamond.2005.08.024

Cold cathodes for applications in poor vacuum and low pressure air environments: Carbon nanotubes versus ZnO nanoneedles

A. J. Cheng, D. Wang, H. W. Seo, C. Liu, M. Park, Y. Tzeng

Institute of Microelectronics

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

19 Citations (Scopus)

Abstract

Effects of gas pressure on the electron field emission (FE) properties of zinc oxide (ZnO) nanoneedles and carbon nanotubes (CNTs) were investigated. The FE properties for ZnO nanoneedles almost fully recovered after being subjected to FE tests in poor vacuum and low pressure gas environments and then characterized again in better vacuum around 2 × 10^{- 6} Torr. In the contrast, the FE properties for CNTs did not recover after being subjected to FE tests in poor vacuum and low pressure gas environments. Reversibility and sensitivity of the FE of ZnO and CNTs to air pressures were studied for potential applications to field emission display (FED) and vacuum microelectronic devices. The pressure-dependant, time-dependant, and pressure-time-dependant field emission behaviors of ZnO nanoneedles and CNTs will be compared and discussed.

Original language	English
Pages (from-to)	426-432
Number of pages	7
Journal	Diamond and Related Materials
Volume	15
Issue number	2-3
DOIs	https://doi.org/10.1016/j.diamond.2005.08.024
Publication status	Published - 2006 Feb

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Chemistry
Mechanical Engineering
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.diamond.2005.08.024

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title = "Cold cathodes for applications in poor vacuum and low pressure air environments: Carbon nanotubes versus ZnO nanoneedles",

abstract = "Effects of gas pressure on the electron field emission (FE) properties of zinc oxide (ZnO) nanoneedles and carbon nanotubes (CNTs) were investigated. The FE properties for ZnO nanoneedles almost fully recovered after being subjected to FE tests in poor vacuum and low pressure gas environments and then characterized again in better vacuum around 2 × 10- 6 Torr. In the contrast, the FE properties for CNTs did not recover after being subjected to FE tests in poor vacuum and low pressure gas environments. Reversibility and sensitivity of the FE of ZnO and CNTs to air pressures were studied for potential applications to field emission display (FED) and vacuum microelectronic devices. The pressure-dependant, time-dependant, and pressure-time-dependant field emission behaviors of ZnO nanoneedles and CNTs will be compared and discussed.",

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T1 - Cold cathodes for applications in poor vacuum and low pressure air environments

T2 - Carbon nanotubes versus ZnO nanoneedles

AU - Cheng, A. J.

AU - Wang, D.

AU - Seo, H. W.

AU - Liu, C.

AU - Park, M.

AU - Tzeng, Y.

PY - 2006/2

Y1 - 2006/2

N2 - Effects of gas pressure on the electron field emission (FE) properties of zinc oxide (ZnO) nanoneedles and carbon nanotubes (CNTs) were investigated. The FE properties for ZnO nanoneedles almost fully recovered after being subjected to FE tests in poor vacuum and low pressure gas environments and then characterized again in better vacuum around 2 × 10- 6 Torr. In the contrast, the FE properties for CNTs did not recover after being subjected to FE tests in poor vacuum and low pressure gas environments. Reversibility and sensitivity of the FE of ZnO and CNTs to air pressures were studied for potential applications to field emission display (FED) and vacuum microelectronic devices. The pressure-dependant, time-dependant, and pressure-time-dependant field emission behaviors of ZnO nanoneedles and CNTs will be compared and discussed.

AB - Effects of gas pressure on the electron field emission (FE) properties of zinc oxide (ZnO) nanoneedles and carbon nanotubes (CNTs) were investigated. The FE properties for ZnO nanoneedles almost fully recovered after being subjected to FE tests in poor vacuum and low pressure gas environments and then characterized again in better vacuum around 2 × 10- 6 Torr. In the contrast, the FE properties for CNTs did not recover after being subjected to FE tests in poor vacuum and low pressure gas environments. Reversibility and sensitivity of the FE of ZnO and CNTs to air pressures were studied for potential applications to field emission display (FED) and vacuum microelectronic devices. The pressure-dependant, time-dependant, and pressure-time-dependant field emission behaviors of ZnO nanoneedles and CNTs will be compared and discussed.

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Cold cathodes for applications in poor vacuum and low pressure air environments: Carbon nanotubes versus ZnO nanoneedles

Abstract

All Science Journal Classification (ASJC) codes

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