Article ID Journal Published Year Pages File Type
5403972 Journal of Luminescence 2007 5 Pages PDF
Abstract
Transient response of the dielectric permittivity of dielectric powder of LSO:Ce3+ under pulsed laser excitation were recorded by the 8-mm microwave resonator technique at room temperature. The signal in absorption mode is the signature of Ce3+ photoionization and photoconductivity effect in the rare-earth-doped dielectric grains. The signal in dispersion mode results from surface defects around each grain leading to electronic traps. This opens new perspectives for photoconductivity measurements on rare-earth-doped insulating nanopowders.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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