Research Papers in Physics and Astronomy

 

Date of this Version

2005

Comments

Published in Journal of Physics D: Applied Physics 38 (2005), pp. 1248–1252; doi:10.1088/0022-3727/38/8/023 Copyright © 2005 IOP Publishing. Used by permission. http://stacks.iop.org/JPhysD/38/1248

Abstract

Boron carbides fabricated via plasma enhanced chemical vapor deposition from different isomeric source compounds with the same C2B10H12 closo-icosahedral structure result in materials with very different direct (optical) band gaps. This provides compelling evidence for the existence of multiple polytypes of C2B10 boron carbide and is consistent with electron diffraction results.

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