Diamond crystallites grown on Ir/SrTiO3 substrates after a bias-enhanced nucleation procedure in a hot filament reactor have been studied using Raman spectroscopy. In particular, two techniques, Raman imaging and Raman mapping have been employed, and some of their relative merits for the detection of small diamond particles are presented. Part of the present results tend to indicate that the bias-enhanced nucleation process in hot filament reactors differs significantly from the corresponding one in microwave plasma reactors. In particular, a thin layer of graphitic carbon is systematically detected at the indium surface. It is speculated that the presence of this layer prevents the oriented nucleation and growth of the diamond crystallites.

Arnault, J., Schull, G., Mermoux, M., Marcus, B., Crisci, A., Polini, R. (2005). BEN-HFCVD effects on diamond nucleation on iridium: a Raman imaging study. PHYSICA STATUS SOLIDI. A, APPLICATIONS AND MATERIALS SCIENCE, 202(11), 2073-2078 [10.1002/pssa.200561912].

BEN-HFCVD effects on diamond nucleation on iridium: a Raman imaging study

POLINI, RICCARDO
2005-09-01

Abstract

Diamond crystallites grown on Ir/SrTiO3 substrates after a bias-enhanced nucleation procedure in a hot filament reactor have been studied using Raman spectroscopy. In particular, two techniques, Raman imaging and Raman mapping have been employed, and some of their relative merits for the detection of small diamond particles are presented. Part of the present results tend to indicate that the bias-enhanced nucleation process in hot filament reactors differs significantly from the corresponding one in microwave plasma reactors. In particular, a thin layer of graphitic carbon is systematically detected at the indium surface. It is speculated that the presence of this layer prevents the oriented nucleation and growth of the diamond crystallites.
set-2005
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/03 - CHIMICA GENERALE E INORGANICA
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
BEN-HFCVD effects; Diamond nucleation; Microwave plasma reactors; Raman mapping
http://onlinelibrary.wiley.com/doi/10.1002/pssa.200561912/abstract;jsessionid=C782E8230BAE6FEE3D8CE121A621D347.f03t04
Arnault, J., Schull, G., Mermoux, M., Marcus, B., Crisci, A., Polini, R. (2005). BEN-HFCVD effects on diamond nucleation on iridium: a Raman imaging study. PHYSICA STATUS SOLIDI. A, APPLICATIONS AND MATERIALS SCIENCE, 202(11), 2073-2078 [10.1002/pssa.200561912].
Arnault, J; Schull, G; Mermoux, M; Marcus, B; Crisci, A; Polini, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/177973
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