Luminescence and electronic excitations in KBe2BO3F2 crystals / Ogorodnikov I. N.,Pustovarov V. A.,Yakovlev S. A.,Isaenko L. I.,Zhurkov S. A. // PHYSICS OF THE SOLID STATE. - 2012. - V. 54, l. 4. - P. 735-740.

ISSN/EISSN:

1063-7834 / 1090-6460

Type:

Article

Abstract:

This paper reports on a study of the dynamics of electronic excitations in KBe2BO3F2 (KBBF) crystals by low-temperature luminescent vacuum ultraviolet spectroscopy with nanosecond time resolution under photoexcitation by synchrotron radiation. The first data have been obtained on the kinetics of photoluminescence (PL) decay, time-resolved PL spectra, time-resolved PL excitation spectra, and reflection spectra at 7 K; the estimation has been performed for the band gap E (g) = 10.6-11.0 eV; the predominantly excitonic mechanism for PL excitation at 3.88 eV has been identified; and defect luminescence bands at 3.03 and 4.30 eV have been revealed. The channels of generation and decay of electronic excitations in KBBF crystals have been discussed.

Author keywords:

HARMONIC-GENERATION; BORATE CRYSTALS; NLO CRYSTALS; KBBF CRYSTAL; UV-LIGHT; SPECTROSCOPY; GROWTH; LASER

DOI:

10.1134/S106378341204018X

Web of Science ID:

ISI:000302961900010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6460
Keywords-Plus	HARMONIC-GENERATION; BORATE CRYSTALS; NLO CRYSTALS; KBBF CRYSTAL; UV-LIGHT; SPECTROSCOPY; GROWTH; LASER
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	igor.ogorodnikov@bk.ru
ResearcherID-Numbers	Isaenko, Ludmila/H-7620-2013 Zhurkov, Sergey/A-5291-2014 Ogorodnikov, Igor/B-4162-2011 Isaenko, Ludmila/A-5272-2014
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340
Funding-Acknowledgement	HASYLAB DESY {[}20080019]
Funding-Text	This study was supported in part by HASYLAB DESY (project no. 20080019).
Number-of-Cited-References	25
Usage-Count-Since-2013	13
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	928DT