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Spatial Generation Profiles of Active Radicals in Plasma-Enhanced CVD Of a-Si:H

Published online by Cambridge University Press:  21 February 2011

D. Mataras
Affiliation:
Institute of Chemical Engineering and High Temperature Chemical Processes, P.O.Box 1239, GR-26110, and Department of Chemical Engineering, University of Patras, Greece.
S. Cavadias
Affiliation:
Institute of Chemical Engineering and High Temperature Chemical Processes, P.O.Box 1239, GR-26110, and Department of Chemical Engineering, University of Patras, Greece.
D. Rapakoulias
Affiliation:
Institute of Chemical Engineering and High Temperature Chemical Processes, P.O.Box 1239, GR-26110, and Department of Chemical Engineering, University of Patras, Greece.
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Abstract

Spatially resolved Laser Induced Fluorescence and Optical Emission Spectroscopy were applied in an rf silane discharge, for the simultaneous detection of both ground and excited states of SiH radicals. Axial intensity profiles of these radicals were recorded under various conditions. The experimental observations indicate that the two radicals have different generation paths. LIF profiles are considered to represent the generation profile of all the ground state radicals and they were used as such in kinetic calculations.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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