Low temperature synthesis of diamond-based nano-carbon composite materials with high electron field emission properties

A diamond-based nano-carbon composite (d/NCC) material, which contains needle-like diamond grains encased with the nano-graphite layers, was synthesized at low substrate temperature via a bias enhanced growth process using CH4/N2 plasma. Such a unique granular structure renders the d/NCC material ve...

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Bibliographic Details
Published in:Applied physics letters 2015-06, Vol.106 (23)
Main Authors: Saravanan, A., Huang, B. R., Yeh, C. J., Leou, K. C., Lin, I. N.
Format: Article
Language:English
Subjects:
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Composite materials
DIAMONDS
ELECTRIC CONDUCTIVITY
Electrical resistivity
FIELD EMISSION
GRAPHITE
LAYERS
Low temperature
METHANE
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
Nitrogen plasma
SUBSTRATES
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Summary:A diamond-based nano-carbon composite (d/NCC) material, which contains needle-like diamond grains encased with the nano-graphite layers, was synthesized at low substrate temperature via a bias enhanced growth process using CH4/N2 plasma. Such a unique granular structure renders the d/NCC material very conductive (σ = 714.8 S/cm), along with superior electron field emission (EFE) properties (E0 = 4.06 V/μm and Je = 3.18 mA/cm2) and long lifetime (τ = 842 min at 2.41 mA/cm2). Moreover, the electrical conductivity and EFE behavior of d/NCC material can be tuned in a wide range that is especially useful for different kind of applications.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4922370