Open AccessEnhanced luminescence via energy transfer from Ag^+ to RE ions (Dy^3+, Sm^3+, Tb^3+) in glasses
Author(s) -
Jingjing Li,
Rongfei Wei,
Xueyun Liu,
Hai Guo
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.010122
Subject(s) - ion , luminescence , materials science , excitation , analytical chemistry (journal) , quenching (fluorescence) , emission spectrum , absorption (acoustics) , energy transfer , absorption spectroscopy , atomic physics , fluorescence , spectral line , optics , optoelectronics , chemistry , physics , organic chemistry , chromatography , quantum mechanics , astronomy , composite material
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.