Synthesis and Luminescent Characteristic of BaMoO4∶Eu3+
QIU Gui-ming1, XU Cheng-ke2, HUANG Chong1
1. College of Science, Shantou University, Shantou 515063, China 2. Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008, China
Abstract:The BaMoO4∶Eu3+ phosphors were synthesized by solid-state method and were characterized by X-ray diffraction (XRD) and photoluminescence spectra. XRD analysis confirmed the formation of BaMoO4 at 800 ℃ and exhibited a tetragonal crystal structure. The excitation spectrum of samples showed one broad band and some peaks located behind 350 nm. The former was attributed to the charge transfer transition of Eu3+—O2-, while the latter belonged to the f—f transitions of Eu3+ ions. The emission spectrum shows four peaks at 591, 615, 654 and 702 nm, respectively. The dominant peak is located at 615 nm due to the 5D0—7F2 electric dipole transition of Eu3+.
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