Chemical Composition and Bond Structure of Aerosol Particles of Amorphous Hydrogenated Silicon Forming from Thermal Decomposition of Silane Full article
Journal |
Journal of Aerosol Science
ISSN: 0021-8502 , E-ISSN: 1879-1964 |
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Output data | Year: 1997, Volume: 28, Number: 8, Pages: 1425-1441 Pages count : 17 DOI: 10.1016/S0021-8502(97)00026-8 | ||||
Tags | Amorphous silicon; Chemical bonds; Composition; Electron spin resonance spectroscopy; Hydrogenation; Infrared spectroscopy; Nuclear magnetic resonance spectroscopy; Particles (particulate matter); Pyrolysis; Silanes; Structure (composition); Transmission electron microscopy | ||||
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Abstract:
Aerosol particles of amorphous hydrogenated silicon resulting from thermal decomposition of silane were investigated by hydrogen evolution, IR-, EPR-, NMR spectroscopy, and transmission electron microscopy.
The experimental data show that aerosol particles contain to a various extent {SiH2}n polymer structures and two types of monohydride groups SiH- “clustered” and “dilute” monohydride groups. The hydrogen atoms of the “clustered” monohydride groups are located close to each other. The “clustered” monohydride groups are inaccessible to the ambient because they are embedded in the amorphous network. The “dilute” monohydride groups are relatively isolated from each other. The majority of “dilute” monohydride groups are open to the ambient. They are located on the surface of preferentially interconnected microchannels and microvoids.
Interaction between the “dilute” SiH groups and atmospheric oxygen results in formation of OSiH groups in which hydrogen and oxygen are bonded to a common silicon atom. Evidently, the interaction occurs throw the oxygen reaction with weak bonds associated with “dilute” monohydride groups. There is no interaction between oxygen and both “clustered” SiH groups and {SiH2}n chain because the former are inaccessible to atmospheric oxygen and the latter has presumably no weak bonds in the chains.
Cite:
Onischuk A.A.
, Strunin V.P.
, Samoilova R.I.
, Nosov A.V.
, Ushakova M.A.
, Panfilov V.N.
Chemical Composition and Bond Structure of Aerosol Particles of Amorphous Hydrogenated Silicon Forming from Thermal Decomposition of Silane
Journal of Aerosol Science. 1997. V.28. N8. P.1425-1441. DOI: 10.1016/S0021-8502(97)00026-8 WOS Scopus РИНЦ
Chemical Composition and Bond Structure of Aerosol Particles of Amorphous Hydrogenated Silicon Forming from Thermal Decomposition of Silane
Journal of Aerosol Science. 1997. V.28. N8. P.1425-1441. DOI: 10.1016/S0021-8502(97)00026-8 WOS Scopus РИНЦ
Dates:
Submitted: | Sep 23, 1996 |
Accepted: | Mar 7, 1997 |
Published print: | Dec 1, 1997 |
Published online: | Jul 24, 1998 |
Identifiers:
Web of science | WOS:000071363800006 |
Scopus | 2-s2.0-0031460607 |
Elibrary | 13259568 |
Chemical Abstracts | 1998:54349 |
Chemical Abstracts (print) | 128:185956 |
OpenAlex | W2009858784 |