RESEARCH OF ENERGY-TRANSFER IN Y2SIO5-CE, TB SINGLE-CRYSTALS BY TIME-RESOLVED LUMINESCENCE SPECTROSCOPY

Authors
PUSTOVAROV VA SHULGIN BV SMIRNOV SA ZININ EI
Citation
Va. Pustovarov et al., RESEARCH OF ENERGY-TRANSFER IN Y2SIO5-CE, TB SINGLE-CRYSTALS BY TIME-RESOLVED LUMINESCENCE SPECTROSCOPY, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 405(2-3), 1998, pp. 396-399
Citations number
16
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
405
Issue
2-3
Year of publication
1998
Pages
396 - 399
Database
ISI
SICI code
0168-9002(1998)405:2-3<396:ROEIYT>2.0.ZU;2-D
Abstract
The energy transfer between the rare-earth ions in YsSiO5-Ce, Tb cryst als has been investigated with the use of the methods of luminescence spectroscopy with subnanosecond time resolution and excitation by puls ed synchrotron radiation (SR). Effective nonradiative energy transfer between Ce3+ and Tb3+-ions which is realized by the inductive resonanc e mechanism has been observed. The absolute constant of the energy tra nsfer speed Ii, and the probability of transfer have been determined. A dependence of the energy transfer parameters on the SR-excitation de nsity has been discovered and investigated. Increasing of the density of the SR-excitation by a factor of 10 results in the increase of K-t from 4.8 X 10(8) up to 1.7 X 10(10) mol(-1) s(-1).