Temperature dependence of the luminescence of Li6GdxY1-x(BO3)(3):Eu crystals / Ogorodnikov I. N.,Sedunova I. N.,Tolmachev A. V.,Yavetskiy R. P. // OPTICS AND SPECTROSCOPY. - 2012. - V. 113, l. 1. - P. 63-70.

ISSN/EISSN:

0030-400X / нет данных

Type:

Article

Abstract:

The luminescence and recombination processes in crystals of lithium borates Li6Gd (x) Y1 - x (BO3)(3):Eu (LGYBO:Eu) have been studied. The photoluminescence (PL) spectra upon selective photoexcitation to lower excited states of Gd3+ and Eu3+ ions and the temperature dependences of the photoluminescence intensity at different energies of excitation photons have been measured in a wide temperature range: 10-500 K. We observed a photoluminescence band at 3.97 eV, which is due to the (6) P (J) -> (8) S (7/2) transitions in Gd3+ ions, and a characteristic line spectrum in the range of 1.6-2.2 eV, which is related to the radiative f-f transitions in impurity Eu3+ ions, occurring mainly from the lower excited (5) D (0) level to the (7) F (J) states (J = 0, 1, aEuro broken vertical bar, 6). The influence of the O-Eu charge transfer states and the vibrational relaxation between the (6) I (J) and (6) P (J) levels of the Gd3+ ion on the temperature dependences of the intrinsic and impurity luminescence intensities is discussed.

Author keywords:

STIMULATED RECOMBINATION PROCESSES; SINGLE-CRYSTALS; ENERGY-TRANSFER; EU3+; LI6GD(BO3)3; PHOSPHORS; LI6Y(BO3)3; EUBAB9O16; RADIATION; MIGRATION

DOI:

10.1134/S0030400X12070156

Web of Science ID:

ISI:000306954000010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	STIMULATED RECOMBINATION PROCESSES; SINGLE-CRYSTALS; ENERGY-TRANSFER; EU3+; LI6GD(BO3)3; PHOSPHORS; LI6Y(BO3)3; EUBAB9O16; RADIATION; MIGRATION
Research-Areas	Optics; Spectroscopy
Web-of-Science-Categories	Optics; Spectroscopy
Author-Email	ogo@dpt.ustu.ru
ResearcherID-Numbers	Ogorodnikov, Igor/B-4162-2011 Yavetskiy, Roman/J-4323-2015
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340 Yavetskiy, Roman/0000-0003-4260-5481
Funding-Acknowledgement	``Program for Stimulating the Research of Postgraduates and Young Scientists{''} of Ural Federal University
Funding-Text	This study was supported in part by the ``Program for Stimulating the Research of Postgraduates and Young Scientists{''} of Ural Federal University.
Number-of-Cited-References	35
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	9
Journal-ISO	Opt. Spectrosc.
Doc-Delivery-Number	981GD