| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5400973 | Journal of Luminescence | 2013 | 4 Pages |
Eu2+/Ce3+ co-activated Sr3Si6O3N8 phosphor was synthesized by conventional solid-state reaction. Sr3Si6O3N8:Eu2+, Ce3+ green-emitting phosphor could be effectively excited by UV-vis light from 395 to 450Â nm, which matched well with the emission of UV LED chips. The luminescence intensity of Sr3Si6O3N8:Eu2+ could be efficiently enhanced by co-doping with Ce3+. The energy transfer (ET) mechanism from Ce3+ to Eu2+ in Sr3Si6O3N8:Ce3+, Eu2+ phosphors is dominated by electric dipole-dipole interaction, and the critical distance is calculated to be about 25.44Â Ã by theory of energy transfer.
Graphical AbstractThe emission intensity of Sr2.8Si6O3N8: 0.15Eu2+, 0.05Ce3+ is increased by 140% as compared to that of Eu2+ doped Sr3Si6O3N8.Download high-res image (144KB)Download full-size imageHighlights⺠Sr3Si6O3N8:Eu2+ green phosphor could be effectively excited by UV chips (395-450 nm). ⺠Resonant energy transfer between Ce3+ and Eu2+ occurs in the phosphor. ⺠Emission intensity of the Sr3Si6O3N8:Eu2+ phosphors is enhanced about 140% by co-doping with Ce3+.
