High stability electron field emitters made of nanocrystalline diamond coated carbon nanotubes

Journal Article · Mon Dec 16 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4850525· OSTI ID:22253748

Sankaran, K. J.; Srinivasu, K.; Leou, K. C. ^[1]

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1. Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 300, Taiwan (China)

We report enhanced life-time stability for the electron field emitters prepared by coating nanocrystalline diamond (NCD) on carbon nanotubes (CNTs). Upon overcoming the problem of poor stability in CNTs, the NCD-CNTs exhibit excellent life-time stability of 250 min tested at different applied voltages of 600 and 900 V. In contrast, the life-time stability of CNTs is only 33 min even at relatively low voltage of 360 V and starts arcing at 400 V. Hence, the NCD-CNTs with improved life-time stability have great potential for the applications as cathodes in flat panel displays and microplasma display devices.

• OSTI ID: 22253748
• Journal Information: Applied Physics Letters, Vol. 103, Issue 25; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON NANOTUBES
CATHODES
CRYSTALS
DIAMONDS
DISPLAY DEVICES
ELECTRIC POTENTIAL
ELECTRONS
STABILITY