The Luminescence Properties of BaGd2(MoO4)4: Eu3+, Er3+, Yb3+ Phosphors
Two-color emission phosphors BaGd2(MoO4)4: Eu3+, Er3+, Yb3+ have been synthesized by the high temperature solid-state method. The as-prepared BaGd2(MoO4)4: Eu3+, Er3+, Yb3+ phosphors can emit intense red light under 395 nm UV excitation, while it will show bright green light upon 980 nm infrared light excitation. It is found that the red emission peaks at 595 and 614 nm should be attributed to 5D0-7F1 and 5D0-7F2 transitions of Eu3+, respectively. The green emission peaks centered at 532 and 553 nm under 980 nm excitation, are attributed to Er3+ transitions from 4H11/2 -4I15/2 and 4S3/2-4I15/2, respectively.
Yuan Ming Huang
J. Y. Sun et al., "The Luminescence Properties of BaGd2(MoO4)4: Eu3+, Er3+, Yb3+ Phosphors", Materials Science Forum, Vols. 663-665, pp. 137-140, 2011