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Spectroscopic study of defects and inclusions in bulk poly- and nanocrystalline diamond aggregates

Title data

Shiryaev, A. A. ; Iakoubovskii, K. ; Grambole, D. ; Dubrovinskaia, Natalia:
Spectroscopic study of defects and inclusions in bulk poly- and nanocrystalline diamond aggregates.
In: Journal of Physics: Condensed Matter. Vol. 18 (2006) Issue 40 . - pp. 493-501.
ISSN 1361-648X
DOI: https://doi.org/10.1088/0953-8984/18/40/L01

Official URL: Volltext

Project information

Project financing: Alexander von Humboldt-Stiftung
Deutsche Forschungsgemeinschaft Foundation of Support of Russian Science

Abstract in another language

Recently, a novel form of nanodiamond exhibiting unusual mechanical properties has been synthesized by high-pressure high-temperature (HPHT) treatment of C 60 fullerene, amorphous carbon and diamond powder. In this study, we have characterized the dominant defects in this nanodiamond by a combination of optical absorption, luminescence, Raman, electron spin resonance and elastic recoil detection techniques. Unusually high concentrations (~0.4 at.) of hydrogen and very low concentrations of nitrogen (~10 −5 at.) have been detected in diamond grown from C 60 . Although most of hydrogen is shown to originate from inclusions of foreign phases, such as water, significant concentrations (~0.01 at.) of hydrogen were also detected as a point defect in the nanodiamond grains. Observed structural differences between the samples made from various carbonaceous materials are attributed to different behaviour of the starting compounds during HPHT treatment.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professur Materialphysik und Technologie bei extremen Bedingungen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 29 Feb 2016 10:20
Last Modified: 29 Feb 2016 10:20
URI: https://eref.uni-bayreuth.de/id/eprint/31201