Abstract
EuCl3-doped ZnO phosphors are synthesized by sintering in vacuum atmosphere. From PL measurements it is found that, with increasing doping concentration, the broad-band emission centered around 530 nm gradually disappears while the sharp red-emission peaks around 620 nm exhibit a pronounced increase. These results, together with XRD, PL excitation spectra and time-resolved spectra measurements, suggest that an energy-transfer process occurs from the self-activated defect center in ZnO host to the Eu3+ ion which exists in the host lattice in the form of EuOCl.
Original language | English |
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Pages (from-to) | 87-90 |
Number of pages | 4 |
Journal | Journal of Luminescence |
Volume | 78 |
Issue number | 1 |
DOIs | |
State | Published - 30 Jan 1998 |
Keywords
- Energy transfer
- Photoluminescence
- Time-resolved spectroscopy
- ZnO:Eu