A time-resolved luminescence spectroscopy study of non-linear optical crystals K2Al2B2O7 / Ogorodnikov I. N.,Pustovarov V. A.,Yakovlev S. A.,Isaenko L. I.,Zhurkov S. A. // JOURNAL OF LUMINESCENCE. - 2012. - V. 132, l. 7. - P. 1632-1638.

ISSN/EISSN:

0022-2313 / нет данных

Type:

Article

Abstract:

We report the results of complex study of luminescence and dynamics of electronic excitations in K2Al2B2O7 (KABO) crystals obtained using low-temperature luminescence-optical vacuum ultraviolet spectroscopy with sub-nanosecond time resolution under selective photoexcitation with synchrotron radiation. The paper discusses the decay kinetics of photoluminescence (PL), the time-resolved PL emission spectra (1.2-6.2 eV), the time-resolved PL excitation spectra and the reflection spectra (3.7-21 eV) measured at 7 K. On the basis of the obtained results three absorption peaks at 4.7, 5.8 and 6.5 eV were detected and assigned to charge-transfer absorption from O-2(-) to Fe3+ ions; the intrinsic PL band at 3.28 eV was revealed and attributed to radiative annihilation of self-trapped excitons, the defect luminescence bands at 2.68 and 3.54 eV were separated; the strong PL band at 1.72 eV was revealed and attributed to a radiative transition in Fe3+ ion. (C) 2012 Elsevier B.V. All rights reserved.

Author keywords:

Nonlinear crystal; K2Al2B2O7 (KABO); Luminescence spectra; Luminescence decay kinetics; Luminescence excitation spectra; Defects VACUUM-UV SPECTROSCOPY; ELECTRONIC EXCITATIONS; VUV SPECTROSCOPY; SINGLE-CRYSTALS; BERYLLIUM-OXIDE; GENERATION; RADIATION; LIB3O5; GROWTH; ABSORPTION

DOI:

10.1016/j.jlumin.2012.02.032

Web of Science ID:

ISI:000303297200004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	VACUUM-UV SPECTROSCOPY; ELECTRONIC EXCITATIONS; VUV SPECTROSCOPY; SINGLE-CRYSTALS; BERYLLIUM-OXIDE; GENERATION; RADIATION; LIB3O5; GROWTH; ABSORPTION
Research-Areas	Optics
Web-of-Science-Categories	Optics
Author-Email	igor.ogorodnikov@bk.ru
ResearcherID-Numbers	Isaenko, Ludmila/H-7620-2013 Isaenko, Ludmila/A-5272-2014 Ogorodnikov, Igor/B-4162-2011 Zhurkov, Sergey/A-5291-2014
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340
Funding-Acknowledgement	HASYLAB DESY {[}20110050]
Funding-Text	The work supported partially by HASYLAB DESY (project 20110050).
Number-of-Cited-References	35
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	15
Journal-ISO	J. Lumines.
Doc-Delivery-Number	932NG