First photoconductivity measurement following photoionization of rare-earth dopant in a dielectric powder
2007
Abstract Transient response of the dielectric permittivity of dielectric powder of LSO:Ce 3 + 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 Ce 3 + 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.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
15
References
7
Citations
NaN
KQI