Electronic properties of undoped LiBaAlF6 single crystals: far-ultraviolet optical, luminescence, and x-ray photoelectron spectroscopy studies / Pustovarov Vladimir A.,Ogorodnikov Igor N.,Omelkov Sergey I.,Spassky Dmitry A.,Isaenko Ludmila I. // JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS. - 2014. - V. 31, l. 8. - P. 1926-1934.

ISSN/EISSN:

0740-3224 / 1520-8540

Type:

Article

Abstract:

The electronic structure properties of undoped single crystals of LiBaAlF6 (LBAF) were determined using low-temperature (T = 10 K) time-resolved far-ultraviolet (3.7-40 eV) synchrotron radiation spectroscopy, calculations for the spectra of optical functions, and x-ray photoelectron spectroscopy. The bandgap of the investigated compound was found at E-g = 12.3 eV, the energy threshold for creation of the unrelaxed excitons at E-n=1 = 11.6 eV, and the low-energy fundamental absorption edge at 11.0 eV. The subnanosecond photoluminescence emission band at 6.6 eV in LBAF single crystal is due to radiative valence-core transitions 2p F- --> 5p Ba2+. (C) 2014 Optical Society of America

Author keywords:

VUV SPECTROSCOPY; ENERGY-TRANSFER; LICAALF6; PURE; EXCITATION; FLUORIDE; LISRALF6

DOI:

10.1364/JOSAB.31.001926

Web of Science ID:

ISI:000341589700026

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	OPTICAL SOC AMER
Address	2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Language	English
EISSN	1520-8540
Keywords-Plus	VUV SPECTROSCOPY; ENERGY-TRANSFER; LICAALF6; PURE; EXCITATION; FLUORIDE; LISRALF6
Research-Areas	Optics
Web-of-Science-Categories	Optics
Author-Email	omelkovs@gmail.com
ResearcherID-Numbers	Isaenko, Ludmila/H-7620-2013 Isaenko, Ludmila/A-5272-2014 Spassky, Dmitry/D-9524-2012 Ogorodnikov, Igor/B-4162-2011
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation (the basic part of the government mandate); Siberian Branch of the Russian Academy of Sciences {[}28]; HASYLAB DESY {[}20110843]; European Social Fund ({''}Mobilitas{''}) {[}MJD219, MTT83]; Estonian Research Council (Institutional Research Funding) {[}IUT02-26]; Baltic Science Link project
Funding-Text	This work was partly supported by the Ministry of Education and Science of the Russian Federation (the basic part of the government mandate), Siberian Branch of the Russian Academy of Sciences (Grant No. 28), HASYLAB DESY (Project No. 20110843), the European Social Fund ({''}Mobilitas{''
Number-of-Cited-References	35
Usage-Count-Since-2013	9
Journal-ISO	J. Opt. Soc. Am. B-Opt. Phys.
Doc-Delivery-Number	AO8FU