Luminescence properties of alkali europium double tungstates and molybdates AEuM/sub 2/O/sub 8/

Journal Article · Thu Sep 01 00:00:00 EDT 1988 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(88)90203-4· OSTI ID:6774052

van Vliet, J P.M.; Blasse, G; Brixner, L H

The luminescence properties of AEuW/sub 2/O/sub 8/ and AEuMo/sub 2/O/sub 8/ (A/sup +/ = alkali metal ion) are reported. These properties depend on the crystal structure type. Vibronic coupling between the electronic transitions of the Eu/sup 3 +/ ion and the vibrational transitions of the tungstate of molybdate group is observed. The concentration quenching of the Eu/sup 3 +/ luminescence is weak. The analysis of the Eu/sup 3 +/ decay curves points to energy migration and shows the two-dimensionality of the Eu/sup 3 +/ sublattice in KEuMo/sub 2/O/sub 8/ and the one-dimensionality of the Eu/sup 3 +/ sublattice in KEuW/sub 2/O/sub 8/ and RbEuW/sub 2/O/sub 8/.

• Research Organization: Univ. of Utrecht (Netherlands)
• OSTI ID: 6774052
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 76:1; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
CATIONS
CHARGED PARTICLES
DATA
EMISSION SPECTROSCOPY
ENERGY LEVELS
EUROPIUM COMPOUNDS
EXCITED STATES
EXPERIMENTAL DATA
INFORMATION
IONS
LITHIUM COMPOUNDS
LUMINESCENCE
MOLYBDATES
MOLYBDENUM COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RUBIDIUM COMPOUNDS
SODIUM COMPOUNDS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
TUNGSTATES
VIBRATIONAL STATES