THE LUMINESCENT QUANTUM EFFICIENCY OF EU(2-HALIDES DETERMINED BY SIMULTANEOUS MULTIWAVELENGTH PHOTOACOUSTIC AND LUMINESCENCE EXPERIMENTS() IONS IN ALKALI)

Authors
RODRIGUEZ E MUNOZ JA TOCHO JO CUSSO F
Citation
E. Rodriguez et al., THE LUMINESCENT QUANTUM EFFICIENCY OF EU(2-HALIDES DETERMINED BY SIMULTANEOUS MULTIWAVELENGTH PHOTOACOUSTIC AND LUMINESCENCE EXPERIMENTS() IONS IN ALKALI), Journal of physics. Condensed matter, 6(48), 1994, pp. 10625-10631
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
6
Issue
48
Year of publication
1994
Pages
10625 - 10631
Database
ISI
SICI code
0953-8984(1994)6:48<10625:TLQEOE>2.0.ZU;2-0
Abstract
In this work, the luminescent quantum efficiency of Eu2+ ions in alkal i halides is determined by using a method based on the simultaneous an d multiwavelength measurement of photoacoustic and luminescent signals after pulsed laser excitation. This method, which was first demonstra ted in Eu2+-doped KCl, is now extended in order to include the possibi lity of direct non-radiative relaxation from upper excited states to t he ground state. A high quantum efficiency is found for Eu2+ ions in d ifferent alkali halides (NaCl, KCl, KBr and KI).