Luminescence properties of tunable red-green emitting phosphor Ba2Ca(BO3)2:Eu3+, Tb3+ |
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| Authors: | MA Ming-yi SONG Wu-rui JI Chun-yan LI Mei-fan MENG Qing-wei WANG Zhi-jun PANG Li-bin and LIU Hai-yan |
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| Affiliation: | College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China,College of Physics Science & Technology, Hebei University, Baoding 071002, China;Department of Foreign Language Teaching and Research, Hebei University, Baoding 071002, China and College of Physics Science & Technology, Hebei University, Baoding 071002, China;Industrial & Commercial College, Hebei University, Baoding 071002, China |
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| Abstract: | A series of Eu3+ or Tb3+ doped Ba2Ca(BO3)2 phosphors were synthesized by a high temperature solid state method, and the luminescence properties are investigated. Ba2Ca(BO3)2:Tb3+ can show an obvious green emission, and the peak locates at 551 nm, which corresponds to the 5D4→7F5 transition of Tb3+. Ba2Ca(BO3)2:Eu3+ can present the characteristic emission of Eu3+, and the peak locates at 600 nm, which is ascribed to the 5D0→7F2 transition of Eu3+. In order to achieve the emission-tunable phosphors, the Eu3+/Tb3+ co-doped Ba2Ca(BO3)2 are synthesized. When tuning the Eu3+ or Tb3+ concentration, Ba2Ca(BO3)2:Eu3+, Tb3+ can both show the tunable emission, which may be induced by the energy transfer from Tb3+ to Eu3+. |
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