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Amorphous Silicon-Carbon Alloys and Amorphous Carbon from Direct Methane and Ethylene Activation by ECR

Published online by Cambridge University Press:  15 February 2011

J. P. Conde ,
V. Chu ,
F. Giorgis ,
C. F. Pirrt  and
S. Arekat
J. P. Conde
Affiliation:
Dept. of Materials Engineering, Instituto Superior Técnico, Lisbon, Portugal
V. Chu
Affiliation:
Instituto de Engenharia de Sistemas e Computadores, Lisbon, Portugal
F. Giorgis
Affiliation:
Dept. of Physics, Politecnico di Torino, Torino, Italy
C. F. Pirrt
Affiliation:
Dept. of Physics, Politecnico di Torino, Torino, Italy
S. Arekat
Affiliation:
Dept. of Physics, Univ. of Bahrain, Bahrain
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Abstract

Hydrogenated amorphous silicon-carbon alloys are prepared using electron-cyclotron resonance (ECR) plasma-enhanced chemical vapor deposition. Hydrogen is introduced into the source resonance cavity as an excitation gas. Silane is introduced in the main chamber in the vicinity of the plasma stream, whereas the carbon source gases, methane or ethylene, are introduced either with the silane or with the hydrogen as excitation gases. The effect of the type of carbon-source gas, excitation gas mixture and silane-to-carbon source gas flow ratio on the deposition rate, bandgap, subgap density of states, spin density and hydrogen evolution are studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 467: Symposium A – Amorphous and Microcrystalline Silicon Technology - 1997 , 1997 , 627
Copyright
Copyright © Materials Research Society 1997

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References

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