Open AccessInfluence of concentration of Er3+ ions on luminescence and fluorescence lifetime in TeO2-ZnO-Na2O-K2O glasses
Author(s) -
陈炳炎,
刘粤惠,
陈东丹,
姜中宏
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3418
Subject(s) - ion , luminescence , fluorescence , materials science , doping , quenching (fluorescence) , absorption (acoustics) , analytical chemistry (journal) , emission intensity , intensity (physics) , absorption spectroscopy , optics , chemistry , optoelectronics , physics , organic chemistry , chromatography , composite material
Absorption spectra, emission spectra and fluorescence lifetime of Er3+ions were measured for TeO2-ZnO-Na2O-K2O glasses w ith different doping concentrations of Er3+ and the emission cross section σe of Er3+ was calculated. Dependence of luminescence intensity and fluorescence lifetime on concentration of Er3+ were analyzed. The influence of concentratio n of Er3+ ions on luminescence intensity and fluorescence lifetime was unc onspi cuous in the case of low doping level of Er3+. However, high concentr ation of Er3+ ions resulted in the concentration quenching, which reduced the l uminescence intensity and fluorescence lifetime. The optimum concentration of Er3+ ions was determined for TeO2-ZnO-Na2O-K 2O glasses, and the mechanism of concentration quenching was also discussed and explained in detail.