Specific features of luminescence properties of nanostructured aluminum oxide / Kortov V. S.,Ermakov A. E.,Zatsepin A. F.,Uimin M. A.,Nikiforov S. V.,Mysik A. A.,Gaviko V. S. // PHYSICS OF THE SOLID STATE. - 2008. - V. 50, l. 5. - P. 957-961.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

Aluminum oxide nanopowders are prepared by the gas phase method and characterized according to the particle sizes and the phase composition. Samples of the nanostructured ceramic material are produced by pressing and annealing in air. The photoluminescence and cathodoluminescence spectra of the Al2O3 nanostructured ceramic material and alpha-Al2O3 anion-defect single crystals are investigated under comparable conditions. The luminescence bands of centers formed by oxygen vacancies are revealed in the spectra of two types of samples. The nanostructured ceramic material is characterized by the appearance of a new luminescence band at 3.4 eV and a decrease in the luminescence decay time. The inference is made that the characteristic features of the luminescence of the nanostructured ceramic material can be associated with the presence of non-equilibrium phases and the specific features of relaxation processes.

Author keywords:

CRYSTALS

DOI:

10.1134/S1063783408050259

Web of Science ID:

ISI:000255877400025

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	CRYSTALS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	V.Kortov@mail.ustu.ru
ResearcherID-Numbers	Gaviko, Vasilii/K-4632-2013 Uimin, Mikhail/K-1319-2013 Zatsepin, Anatoly/L-7335-2016 Yermakov, Anatoly/J-5185-2013 Mysik, Alexey/J-6716-2013 Nikiforov, Sergey/D-6874-2017
ORCID-Numbers	Gaviko, Vasilii/0000-0002-9841-9293 Uimin, Mikhail/0000-0003-3906-8101 Zatsepin, Anatoly/0000-0001-9539-2403 Yermakov, Anatoly/0000-0001-6466-7064 Mysik, Alexey/0000-0001-8779-8315 Nikiforov, Sergey/0000-0001-7797-8267
Number-of-Cited-References	9
Usage-Count-Since-2013	5
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	301DU