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Effect of Interplay Between Isotropic Gases on Microstructural Evolution of Single Crystal Diamond

Jain, L and Mohapatra, D R and Basu, R and Misra, D S and Misra, Abha and Samajdar, I (2017) Effect of Interplay Between Isotropic Gases on Microstructural Evolution of Single Crystal Diamond. In: CRYSTAL RESEARCH AND TECHNOLOGY, 52 (7).

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Official URL: http://dx.doi.org/10.1002/crat.201700016

Abstract

Homo-epitaxial (100) single crystal diamond films of different isotopic (C-13) compositions were synthesized by micro-wave plasma chemical vapor deposition. An increase in C-13 concentration (0 to 99%) demonstrated clear developments in microstructures. These are related to changes in: (i) morphology, (ii) residual strain and dislocations and (iii) mesoscopic defects. (i) was mainly through increased presence of steps/ledges and corresponding increase in surface roughness. This was accompanied by significantly higher residual strain and presence/energy of dislocations. C-13 concentration also determined mesoscopic defects: presence of non-(100) orientations, nature of grain boundaries and micro-segregations of C-13 and/or CH. A link has been established between various reproducible, experimental observations through stipulated increase in interfacial energy and stresses present at grain boundaries.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 03 Aug 2017 10:32
Last Modified: 03 Aug 2017 10:32
URI: http://eprints.iisc.ac.in/id/eprint/57576

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