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Title: Enhancing the stability of microplasma device utilizing diamond coated carbon nanotubes as cathode materials

This paper reports the enhanced stability of a microplasma device by using hybrid-granular-structured diamond (HiD) film coated carbon nanotubes (CNTs) as cathode, which overcomes the drawback of short life time in the CNTs-based one. The microplasma device can be operated more than 210 min without showing any sign of degradation, whereas the CNTs-based one can last only 50 min. Besides the high robustness against the Ar-ion bombardment, the HiD/CNTs material also possesses superior electron field emission properties with low turn-on field of 3.2 V/μm, which is considered as the prime factor for the improved plasma illumination performance of the 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:
22300089
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 22; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ARGON IONS; CARBON NANOTUBES; CATHODES; DIAMONDS; ELECTRONS; EQUIPMENT; FIELD EMISSION; FILMS; ILLUMINANCE; PLASMA; STABILITY