Luminescence of natural carbon nanomaterial: Impact diamonds from the Popigai crater / Yelisseyev A.,Khrenov A.,Afanasiev V.,Pustovarov V.,Gromilov S.,Panchenko A.,Pokhilenko N.,Litasov K. // DIAMOND AND RELATED MATERIALS. - 2015. - V. 58, l. . - P. 69-77.

ISSN/EISSN:

0925-9635 / 1879-0062

Type:

Article

Abstract:

Impact diamonds (IDs) from the Popigai crater are aggregates of nanoparticulate graphite and cubic and hexagonal diamonds. IDs demonstrate broad-band emissions at 3.05, 2.8, 2.3 and 2.0 eV, which are associated with structural defects and are similar to those in detonation ultra-dispersed diamonds and CVD diamond films. A doublet with components at 1.7856 and 1.7892 eV in some ID samples is related to R-1,R-2 lines of Cr3+ ions in corundum inclusions. The presence of N3, H3, NV0 and NV- vibronic systems in some of the ID samples shows that (i) there is nitrogen impurity and (ii) samples underwent high temperature annealing that promoted vacancies and nitrogen diffusion and defect aggregation. The luminescence decay fits with a sum of two exponential components: lifetime of the fast one is in the 5 to 9 ns range. Parameters of the traps responsible for broad thermoluminescence peaks at 148, 180,276 and 383 K were estimated. (C) 2015 Elsevier B.V. All rights reserved.

Author keywords:

Diamond nanostructures; Impact synthesis; Optical emission; Defect characterization; Optical properties; Light emission HIGH-PRESSURE; POLYCRYSTALLINE; TEMPERATURE; ABSORPTION; INCLUSIONS; GRAPHITE; DEFECTS

DOI:

10.1016/j.diamond.2015.06.010

Web of Science ID:

ISI:000362137100012

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1879-0062
Keywords-Plus	HIGH-PRESSURE; POLYCRYSTALLINE; TEMPERATURE; ABSORPTION; INCLUSIONS; GRAPHITE; DEFECTS
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	eliseev.ap@mail.ru
ResearcherID-Numbers	Yelisseyev, Alexander/A-3846-2014 Litasov, Konstantin/A-5366-2014 Pokhilenko, Nikolay/B-3211-2014
ORCID-Numbers	Yelisseyev, Alexander/0000-0002-0509-2122
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-05-00568a, 13-02-98041a]; Ministry of Education and Science of the Russian Federation {[}14.B25.31.0032]
Funding-Text	The work was supported by grants 13-05-00568a and 13-02-98041a from the Russian Foundation for Basic Research and was carried out as part of project no. 14.B25.31.0032 of the Ministry of Education and Science of the Russian Federation.
Number-of-Cited-References	44
Usage-Count-Since-2013	9
Journal-ISO	Diam. Relat. Mat.
Doc-Delivery-Number	CS5SA