Surface Brillouin scattering on annealed ion-implanted CVD diamond

I. Motochi; S.R. Naidoo; B.A. Mathe; R. Erasmus; E. Aradi; T.E. Derry; E.J. Olivier

doi:10.1016/j.diamond.2015.03.022

Surface Brillouin scattering on annealed ion-implanted CVD diamond

I. Motochi, S.R. Naidoo, B.A. Mathe, R. Erasmus, E. Aradi, T.E. Derry, E.J. Olivier

Mechanical and Aerospace Engineering

University of Witwatersrand, Johannesburg

Research output: Contribution to journal › Article › peer-review

Abstract

Single crystal <100> diamond samples were implanted with a total fluence of 1.5 × 1016 ions/cm2 at single energy of 150 keV using carbon ions. This implantation fluence created a damage density that would not restore the diamond structure after annealing. Surface Brillouin scattering studies show that the elastic properties of the highly damaged diamond layer starts to transit from diamond-like to amorphous carbon state at an annealing temperature of 500 °C. The amorphous carbon layer is shown to have a sound velocity (elastic properties) similar to those reported for tetrahedral amorphous carbon (ta-C). Raman spectroscopy, EELS and HRTEM has been used in conjunction with the SBS data to monitor the changes in the carbon implanted diamond at different annealing temperatures.

Original language	Undefined
Pages (from-to)	6-12
Number of pages	7
Journal	Diamond and Related Materials
Volume	56
DOIs	https://doi.org/10.1016/j.diamond.2015.03.022
Publication status	E-pub ahead of print - 3 Apr 2015

Keywords

Ion implantation
Surface Brillouin scattering
Acoustic waves

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10.1016/j.diamond.2015.03.022

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abstract = "Single crystal <100> diamond samples were implanted with a total fluence of 1.5 × 1016 ions/cm2 at single energy of 150 keV using carbon ions. This implantation fluence created a damage density that would not restore the diamond structure after annealing. Surface Brillouin scattering studies show that the elastic properties of the highly damaged diamond layer starts to transit from diamond-like to amorphous carbon state at an annealing temperature of 500 °C. The amorphous carbon layer is shown to have a sound velocity (elastic properties) similar to those reported for tetrahedral amorphous carbon (ta-C). Raman spectroscopy, EELS and HRTEM has been used in conjunction with the SBS data to monitor the changes in the carbon implanted diamond at different annealing temperatures.",

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T1 - Surface Brillouin scattering on annealed ion-implanted CVD diamond

AU - Motochi, I.

AU - Naidoo, S.R.

AU - Mathe, B.A.

AU - Erasmus, R.

AU - Aradi, E.

AU - Derry, T.E.

AU - Olivier, E.J.

PY - 2015/4/3

Y1 - 2015/4/3

N2 - Single crystal <100> diamond samples were implanted with a total fluence of 1.5 × 1016 ions/cm2 at single energy of 150 keV using carbon ions. This implantation fluence created a damage density that would not restore the diamond structure after annealing. Surface Brillouin scattering studies show that the elastic properties of the highly damaged diamond layer starts to transit from diamond-like to amorphous carbon state at an annealing temperature of 500 °C. The amorphous carbon layer is shown to have a sound velocity (elastic properties) similar to those reported for tetrahedral amorphous carbon (ta-C). Raman spectroscopy, EELS and HRTEM has been used in conjunction with the SBS data to monitor the changes in the carbon implanted diamond at different annealing temperatures.

AB - Single crystal <100> diamond samples were implanted with a total fluence of 1.5 × 1016 ions/cm2 at single energy of 150 keV using carbon ions. This implantation fluence created a damage density that would not restore the diamond structure after annealing. Surface Brillouin scattering studies show that the elastic properties of the highly damaged diamond layer starts to transit from diamond-like to amorphous carbon state at an annealing temperature of 500 °C. The amorphous carbon layer is shown to have a sound velocity (elastic properties) similar to those reported for tetrahedral amorphous carbon (ta-C). Raman spectroscopy, EELS and HRTEM has been used in conjunction with the SBS data to monitor the changes in the carbon implanted diamond at different annealing temperatures.

KW - Ion implantation

KW - Surface Brillouin scattering

KW - Acoustic waves

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U2 - 10.1016/j.diamond.2015.03.022

DO - 10.1016/j.diamond.2015.03.022

M3 - Article

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VL - 56

SP - 6

EP - 12

JO - Diamond and Related Materials

JF - Diamond and Related Materials

ER -

Surface Brillouin scattering on annealed ion-implanted CVD diamond

Abstract

Keywords

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