6533b836fe1ef96bd12a1190
RESEARCH PRODUCT
Photostimulable energy transfer in doped nanostructures of alkali halides
G. Vâlesubject
PhotoluminescencePhotostimulated luminescenceChemistryExcitonDopingBiophysicsMineralogyHalideGeneral ChemistryCondensed Matter PhysicsAlkali metalBiochemistryElectron transport chainAtomic and Molecular Physics and OpticsChemical physicsCrystallitedescription
Abstract In nanostructures of doped alkali halides, unrelaxed H-centres produced in the exciton decay are able to escape from the surface thus producing in the grains of polycrystalline film an excess concentration of F-centres, which has a great tendency to form an interacting F-centre chain or a canal. Role of this F-centre chain in photostimulable energy transfer is analysed. It is concluded that specific interaction of unrelaxed H-centres and electrons with the F-centre chain (or the canal) leads to the temperature-independent exciton or electron transport at any distance. Hence, the temperatureindependent photostimulated luminescence (PSL) response production and retrieval are experimentally observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-02-01 | Journal of Luminescence |