Synthesis and luminescence properties of LaVO4:RE3+ (RE = Sm, Eu, Tb, Tm) phosphors.
Rare earth (RE)-doped lanthanide vanadate phosphors for multicolor display applications were synthesized with different activator ions by using a solid-state reaction method. The effects of activator ions on the structural, morphological, and optical properties of lanthanide vanadate phosphors were investigated. X-ray diffaction data exhibited that the main peak of the phosphors occurs at a (120) plane. Maximum grain size and hexagonal morphology are observed by incorporating Eu3+ activator ions into a host lattice. The emission spectra of RE ions-doped LaVO4 phosphors under excitation at 324 nm consist of multicolor emissions: the main red emission for Eu3+, Orange for Tm3+, green for Tb3+, and blue for Tm3+ activator ions. These results suggest that the multicolor emissions can be realized by controlling activator ions incorporated into host crystals.
Department of Materials Science and Engineering, Silla University, Busan 617-736, Korea.
Shinho
S
Cho
D003460:Crystallization / Q000379:methods*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties; D014638:Vanadates / Q000737:chemistry*
D028581:Lanthanoid Series Elements; D046911:Macromolecular Substances; D014638:Vanadates