Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1611594 | Journal of Alloys and Compounds | 2014 | 4 Pages |
•The optical properties of the Sb3+/Eu3+ co-doped glasses are presented.•The emission is well controlled by simply varying the Sb3+/Eu3+ doping ratio.•White light emission is achieved under the excitation of 274 nm.•The sensitization from Sb3+ to Eu3+ is confirmed.•The possible energy transfer process involved is discussed.
In the present work, the optical properties of Sb3+-doped and Sb3+/Eu3+ co-doped phosphate glasses were investigated. The blue emission intensity of Sb3+ decreased significantly while the red emission intensity of Eu3+ increased with the increasing concentration of Eu3+ ions. It was confirmed that an energy transfer from Sb3+ to Eu3+ occurred and the possible luminescent mechanism was proposed. The results suggest that the sensitization of Sb3+ not only enhance the emission intensity of Eu3+ excited at 274 nm, but also results in the tunable emission color of the glasses. Particularly, white light photoluminescence combining blue and red emission was observed under ultraviolet light excitation.