Transient optical absorption and luminescence in APb(2)Cl(5) (A = K, Rb) crystals / Ogorodnikov I. N.,Smirnov A. A.,Pustovarov V. A.,Isaenko L. I.,Tarasova A. Yu.,Yakovlev V. Yu. // PHYSICS OF THE SOLID STATE. - 2009. - V. 51, l. 8. - P. 1640-1648.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

This paper reports on a study of transient optical absorption and pulsed cathodoluminescence in APb(2)Cl(5) (A = K, Rb) in the visible and ultraviolet spectral regions. The measurements performed by absorption optical spectroscopy with nanosecond time resolution showed the transient optical absorption of APb(2)Cl(5) to derive from optical transitions in hole centers, and that the optical density relaxation kinetics is mediated by interdefect tunneling recombination in complementary pairs which involves Frenkel defects on the cation sublattice and self-trapped carriers. The slow components in the transient optical absorption decay kinetics, with characteristic times ranging from a few ms to seconds, have been assigned to diffusion-mediated annihilation of interstitial atoms with alkali metal vacancies. The mechanisms underlying creation and relaxation of the short-lived Frenkel defects on the cation sublattice and self-trapped carriers have been analyzed.

Author keywords:

TELECOMMUNICATION AMPLIFIERS; DOUBLE CHLORIDE; KPB2CL5 CRYSTALS; LASER CRYSTALS; ELECTRON; PHOTOLUMINESCENCE; TRANSITIONS; EXCITONS

DOI:

10.1134/S1063783409080204

Web of Science ID:

ISI:000269015000020

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	TELECOMMUNICATION AMPLIFIERS; DOUBLE CHLORIDE; KPB2CL5 CRYSTALS; LASER CRYSTALS; ELECTRON; PHOTOLUMINESCENCE; TRANSITIONS; EXCITONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	ogo@dpt.ustu.ru
ResearcherID-Numbers	Yakovlev, Victor/P-4197-2015 Ogorodnikov, Igor/B-4162-2011 Isaenko, Ludmila/H-7620-2013 Tarasova, Aleksandra/A-7765-2014 Isaenko, Ludmila/A-5272-2014
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340
Number-of-Cited-References	41
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	8
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	484AL