title: Enhanced luminescence via energy transfer from Ag+ to RE ions (Dy3+, Sm3+, Tb3+) in glasses.
abstract: Oxyfluoride glasses containing Ag species and rare earth (RE) ions (Dy(3+), Sm(3+), Tb(3+)) were prepared by melt-quenching technique. The type of luminescent species of novel excitation band (230-300 nm peaked at 255 nm) and emission band (300-600 nm peaked at 350 nm) were investigated by absorption, excitation, emission spectra, as well as decay lifetime measurements and can be ascribed to isolated Ag(+) ions. Owing to energy transfer from Ag(+) to RE ions, significant enhancements of RE ions emission (76 times for Sm(3+), 41 times for Dy(3+)) were observed for non-resonant UV excitation (255 nm). Our research may extend the understanding of interactions between RE ions and Ag species.
authors.affiliation: Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang, 321004, China.
authors.forename: JingJing
authors.initials: J
authors.lastname: Li
authors.forename: RongFei
authors.initials: R
authors.lastname: Wei
authors.forename: XueYun
authors.initials: X
authors.lastname: Liu
authors.forename: Hai
authors.initials: H
authors.lastname: Guo
mesh_terms: D004735:Energy Transfer; D005898:Glass / Q000737:chemistry*; D008027:Light; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*
chemical_list: D008670:Metals