Spectral-luminescence study of the solid solutions Cs /SUB x/ Rb /SUB 1-x/ UO/sub 2/(NO/sub 3/)/sub 3/
Journal Article
·
· J. Appl. Spectrosc. (Engl. Transl.); (United States)
OSTI ID:5161627
The authors present new information concerning the conditions for obtaining and the composition of the indicated mixed crystals, the structure of some luminescence centers, and the transfer of electronic excitation energy between them. They studied fine crystalline samples obtained by free evaporation (T = 340/sup 0/ CK) of water solutions of RbUO/sub 2/(NO/sub 3/ - RbUO/sub 2/(NO/sub 3/)/sub 3/, with additions of CsUO/sub 2/(NO/sub 3/)/sub 3/ (up to 4 mole %). The authors study the changes which should be expected in the spectral characteristics of crystals or rubidium uranyl nitrate when separate Rb/sup +/ cations, separated by several lattice constants from one another, are replaced by Cs/sup +/ (the case of quite low concentration of the CsUO/sub 2/(NO/sub 3/)/sub 3/ impurity). On the whole, the idea that the probability of energy transfer between neighboring molecules is much higher than the probability of the radiative transition is in agreement with the obtained distribution of luminescence intensity between different centers, which indicates the validity of the correspondence made between their structures.
- OSTI ID:
- 5161627
- Journal Information:
- J. Appl. Spectrosc. (Engl. Transl.); (United States), Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States) Vol. 43; ISSN JASYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
ALKALI METAL COMPLEXES
BINDING ENERGY
CESIUM COMPLEXES
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
ELECTRON TRANSFER
EMISSION SPECTRA
ENERGY
LATTICE PARAMETERS
LUMINESCENCE
MOLECULAR STRUCTURE
NEUTRON DIFFRACTION
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
RUBIDIUM COMPLEXES
SCATTERING
SPECTRA
TRAPS
URANIUM COMPOUNDS
URANYL COMPOUNDS
URANYL NITRATES
X-RAY DIFFRACTION
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
ALKALI METAL COMPLEXES
BINDING ENERGY
CESIUM COMPLEXES
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
ELECTRON TRANSFER
EMISSION SPECTRA
ENERGY
LATTICE PARAMETERS
LUMINESCENCE
MOLECULAR STRUCTURE
NEUTRON DIFFRACTION
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
RUBIDIUM COMPLEXES
SCATTERING
SPECTRA
TRAPS
URANIUM COMPOUNDS
URANYL COMPOUNDS
URANYL NITRATES
X-RAY DIFFRACTION