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

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.
Authors:
;  [1] ; ;  [2] ;  [3]
  1. Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu 300, Taiwan (China)
  2. Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 300, Taiwan (China)
  3. Department of Physics, Tamkang University, Tamsui 251, Taiwan (China)
Publication Date:
OSTI Identifier:
22253748
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 25; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; CATHODES; CRYSTALS; DIAMONDS; DISPLAY DEVICES; ELECTRIC POTENTIAL; ELECTRONS; STABILITY