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The Effect of Aspect Ratio and SP2/SP3 Content on the Field Emission Properties of Carbon Films Grown by N2-Spiked PECVD

Published online by Cambridge University Press:  10 February 2011

William M. Tong ,
Lawrence S. Pan ,
Thomas E. Felter ,
Simone Anders ,
Aline Cossy-Favre  and
Thomas Stammler
William M. Tong
Affiliation:
Sandia National Laboratories, Livermore, CA 94550, USA
Lawrence S. Pan
Affiliation:
Sandia National Laboratories, Livermore, CA 94550, USA
Thomas E. Felter
Affiliation:
Sandia National Laboratories, Livermore, CA 94550, USA
Simone Anders
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
Aline Cossy-Favre
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
Thomas Stammler
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
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Abstract

We have deposited carbon films from mixtures of methane and N2 using Plasma Enhanced Chemical Vapor Deposition. By changing the percentage of N2 in the feed gas, we were able to produce films that have various aspect ratios and sp2/sp3 contents. The film with the highest field emission contains spears of aspect ratio of 10:1. We also found that in our sp3-rich films, higher sp2 content enhanced field emission. This is ascribed to improved charge transport to the field emission sites.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 509: Symposium C – Materials Issues in Vacuum Microelectronics , 1998 , 155
Copyright
Copyright © Materials Research Society 1998

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