Novel Trichromatic Phosphor Codoped with Two Rare Earth Ions in a Single Matrix

摘要

The luminescence properties of CaBPO 5: Eu, Tb phosphor and the sensitization of Ce 3+ were investigated. The CaBPO 5: Eu, Tb phosphors were synthesized in the ambient air and the emission spectra of Eu 3+ , Tb 3+ and Eu 2+ were observed in the phosphor. The result shows that there is electron transfer between conjugate rare earth ions. Sensitization of Ce 3+ can improve the intensity of emission of Tb 3+ and Eu 2+ . A novel trichromatic lamp phosphor codoped with Eu 3+ Tb 3+ in matrix CaBPO 5 is then predicted.