COMPARATIVE-STUDIES OF OPTICAL-PROPERTIES OF EU(III) IN KEU(MOO4)(2) AND KEU(WO4)(2) CRYSTALS

Authors
MACALIK L HANUZA J MACALIK B STREK W LEGENDZIEWICZ J
Citation
L. Macalik et al., COMPARATIVE-STUDIES OF OPTICAL-PROPERTIES OF EU(III) IN KEU(MOO4)(2) AND KEU(WO4)(2) CRYSTALS, European journal of solid state and inorganic chemistry, 33(5), 1996, pp. 397-410
Citations number
28
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
European journal of solid state and inorganic chemistry → ACNP
ISSN journal
09924361
Volume
33
Issue
5
Year of publication
1996
Pages
397 - 410
Database
ISI
SICI code
0992-4361(1996)33:5<397:COOOEI>2.0.ZU;2-2
Abstract
The spectroscopic properties of Eu(III) ions in two stoichiometric KEu (MoO4)(2) and KEu(WO4)(2) crystals were examined. Based on the absorpt ion spectra the intensity analysis of f-f transitions was performed. T he energy schemes of Eu3+ ions in both the systems were settled. Disti nct vibronic sidebands accompanying the hypersensitive transitions wer e observed in absorption, emission and excitation spectra for both the systems being more pronounced for tungstate crystals. Using the data of vibrational analysis the assignment of vibronic transitions was pro posed. Temperature quenching of emission in the range 15 - 300 K was s ignificant for the molybdate crystal and hardly observed for the tungs tate crystal.