Luminescence of oxygen molecular ion in neodymium-doped yttria / Solomonov V. I.,Spirina A. V.,Vovkotrub E. G.,Strekalovskii V. N. // OPTICS AND SPECTROSCOPY. - 2011. - V. 110, l. 6. - P. 890-896.

ISSN/EISSN:

0030-400X / нет данных

Type:

Article

Abstract:

Pulsed cathodoluminescence spectra of Nd(3+):Y(2)O(3) compacts registered after their annealing in air at a temperature above 950A degrees C exhibit a structured band in the range 610-660 nm with four well-resolved components located at wavelengths of 620.6, 630.6, 645.3, and 655.6 nm. At the same time, the lattice parameter of the cubic yttria increases, and the color of samples changes from light blue to yellowish. In addition, the nearly complete absorption of the intrinsic luminescence band of yttria is observed in the range of 380-600 nm with a center at lambda = 485 nm. We assume that these effects are caused by oxygen molecular ions O (2) (-) , which are formed in cubic yttria due to the penetration of oxygen into natural anion vacancies. The frequencies of vibrations of the ground and excited states of the oxygen molecular ion has been determined.

Author keywords:

ALKALI-HALIDE CRYSTALS; ELECTRONIC STATES; EMISSION-SPECTRUM; RAMAN-SPECTRA; PHONON; PHOTOELECTRON; O-2(-)

DOI:

10.1134/S0030400X11060154

Web of Science ID:

ISI:000292272600010

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	ALKALI-HALIDE CRYSTALS; ELECTRONIC STATES; EMISSION-SPECTRUM; RAMAN-SPECTRA; PHONON; PHOTOELECTRON; O-2(-)
Research-Areas	Optics; Spectroscopy
Web-of-Science-Categories	Optics; Spectroscopy
Author-Email	rasuleva@iep.uran.ru E.Vovkotrub@ihte.uran.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}10-08-00078a]
Funding-Text	This study was supported by the Russian Foundation for Basic Research, project no. 10-08-00078a ({''}Crystal Phases and Phase Transitions in Nanopowders{''}).
Number-of-Cited-References	24
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	5
Journal-ISO	Opt. Spectrosc.
Doc-Delivery-Number	785ZU