Luminescence in the system Mg/sub 4/Ta/sub 2-x/Nb/sub x/O/sub 9/
Journal Article
·
· J. Solid State Chem.; (United States)
Detailed emission and excitation spectra and decay measurements of the luminescence of the system Mg/sub 4/Ta/sub 2-x/Nb/sub x/O/sub 9/ are reported. In Mg/sub 4/Ta/sub 2/O/sub 9/ a new emission and excitation band at relatively low energy has been found. In the samples with a high niobium concentration (x greater than or equal to 1) a new weak orange emission has been observed upon long-wavelength uv excitation. A new interpretation of the results, based on the occurrence of different niobate or tantalate centers, is presented.
- Research Organization:
- State Univ., Utrecht
- OSTI ID:
- 7121052
- Journal Information:
- J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 19:3; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
ALKALINE EARTH METAL COMPOUNDS
EMISSION SPECTRA
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 01-10
EXCITATION
LUMINESCENCE
MAGNESIUM COMPOUNDS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
RADIATION EFFECTS
SPECTRA
TANTALUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
ALKALINE EARTH METAL COMPOUNDS
EMISSION SPECTRA
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 01-10
EXCITATION
LUMINESCENCE
MAGNESIUM COMPOUNDS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
RADIATION EFFECTS
SPECTRA
TANTALUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS