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SAXS analysis of the effect of H-2 dilution on microstructural changes of HWCVD deposited a-SiC : H

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Title SAXS analysis of the effect of H-2 dilution on microstructural changes of HWCVD deposited a-SiC : H
 
Creator SWAIN, BP
 
Subject angle x-ray
amorphous-silicon carbide
scattering
films
alloys
microvoids
hydrogen
spectroscopy
devices
a-sic : h
microstructure
saxs
xrr
hwcvd deposition
 
Description Hydrogenated amorphous silicon carbon (a-SiC : H) films were deposited by hot wire chemical vapor deposition (HWCVD) and their porosity was investigated by small-angle X-ray scattering (SAXS), XRR and FTIR. SAXS measurement was analyzed by Guiner plot, Porod plot, Debye plot and scaling factor. The measurement of the SAXS results assumed a distribution of spherical pores. This analysis suggested that the maximum of pore size distributions occur for radius of gyration of 5-6 angstrom. As the H-2 flow rate increases, the pore size distribution narrows and the volume occupied by the pores decreases. A direct relation between the atomic density of a-SiC:H films deposited by HWCVD and the pore volume fraction was also obtained. The low scattering intensity observed for the films deposited by HWCVD showed that they were compact and homogeneous regardless of the H-2 dilution. (c) 2006
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-26T15:18:45Z
2011-12-26T12:54:54Z
2011-12-27T05:43:18Z
2011-07-26T15:18:45Z
2011-12-26T12:54:54Z
2011-12-27T05:43:18Z
2006
 
Type Article
 
Identifier MATERIALS LETTERS, 60(21-22), 2767-2772
0167-577X
http://dx.doi.org/10.1016/j.matlet.2006.01.087
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6942
http://hdl.handle.net/10054/6942
 
Language en