Electron excitations in LiB3O5 crystals with defects: Low-temperature time-resolved luminescence VUV spectroscopy / Ogorodnikov IN,Pustovarov VA,Kirm M,Kruzhalov AV,Isaenko LI // PHYSICS OF THE SOLID STATE. - 2001. - V. 43, l. 8. - P. 1454-1463.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

The dynamics of electron excitations and luminescence of LiB3O5 (LBO) single crystals was studied using low-temperature luminescence vacuum ultraviolet spectroscopy with a subnanosecond time resolution under photoexcitation with synchrotron radiation. The kinetics of the photoluminescence (PL) decay, the time-resolved PL emission spectra, and the time-resolved PL excitation spectra of LBO were measured at 7 and 290 K, respectively. The PL emission bands peaking at 2.7 eV and 3.3 eV were attributed to the radiative transitions of electronic excitations connected with lattice defects of LBO. The intrinsic PL emission bands at 3.6 and 4.2 eV were associated with the radiative annihilation of two kinds of self-trapped electron excitations in LBO. The processes responsible for the formation of localized electron excitations in LBO were discussed and compared with those taking place in wide-gap oxides. (C) 2001 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

NONLINEAR CRYSTALS; RELAXATION

DOI:

10.1134/1.1395083

Web of Science ID:

ISI:000170396600009

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	NONLINEAR CRYSTALS; RELAXATION
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Isaenko, Ludmila/H-7620-2013 Ogorodnikov, Igor/B-4162-2011 Isaenko, Ludmila/A-5272-2014 Kirm, Marco/M-1533-2016
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340 Kirm, Marco/0000-0002-1833-6894
Number-of-Cited-References	34
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	462AR