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Field Emission from Novel Room Temperature Grown Carbon Based Multilayered Cathodes

Published online by Cambridge University Press:  17 March 2011

B.S. Satyanarayana ,
K. Nishimura  and
A. Hiraki
B.S. Satyanarayana
Affiliation:
Also- Sistec Co Ltd, Nankoku-Shi, Kochi, 783 0014, Japan
K. Nishimura
Affiliation:
Kochi Prefectural Industrial Tech. Centre, 3992-3, Nunoshida, Kochi, 781-5101, Japan
A. Hiraki
Affiliation:
KUT Academic & Industrial Collaboration Centre, Kochi University of Technology, Kochi, 782-8502, Japan
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Abstract

Low field electron emission from novel room temperature grown multilayered cold cathodes were studied. The cathodes consisted of a layer of nanocrystalline diamond and a layer of nanocluster carbon films. The nanocrystalline diamond was first coated on to the substrate. The nanocluster carbon films and the tetrahedral amorphous carbon films were then deposited on the nanocrystalline diamond coated substrates using the cathodic arc process at room temperature. The heterostructured microcathodes were observed to exhibit electron emission currents of 1µA/cm2 at fields as low as 1 V/µm. The effect of the nanoseeded diamond size and concentration and the properties of different nanocluster carbon films on emission characteristics is presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 685: Symposium D – Advanced Materials and Devices for Large-Area Electronics , 2001 , D15.5.1
Copyright
Copyright © Materials Research Society 2001

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