Lanthanum. beta. -alumina phase doped with europium: optical investigation by dye laser site-selective excitation

Journal Article · Fri Jan 01 04:00:00 EST 1982 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(82)90030-5· OSTI ID:5397352

Dexpert-Ghys, J; Faucher, M; Caro, P

Optical properties of Eu/sup 3 +/-doped in (La) ..beta..-alumina are studied under conventional ultraviolet excitation and under site-selective excitiation using a dye laser. The results are interpreted in terms of structural characteristics: eight different point sites are thus observed for Ln/sup 3 +/ (La/sup 3 +/ or Eu/sup 3 +/). Following the spectroscopic as well as the previous X-ray diffraction analysis the mirror plane structure is described as the juxtaposition of microdomains in which Ln/sup 3 +/ ions have different immediate environments with 5 to 12 oxygen first neighbors.

• Research Organization: Laboratorie des Elements de Transition dans les Solides CNRS, Meudon, France
• OSTI ID: 5397352
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 41:1; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL STRUCTURE
DATA
DIFFRACTION
ENERGY-LEVEL TRANSITIONS
EUROPIUM ADDITIONS
EUROPIUM ALLOYS
EXCITATION
EXPERIMENTAL DATA
FLUORESCENCE
INFORMATION
LANTHANUM COMPOUNDS
LUMINESCENCE
NUMERICAL DATA
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SCATTERING
X-RAY DIFFRACTION