Effect of modifier ions on fluorescence and absorption of Eu3+ in alkali and alkaline earth silicate glasses

Fluorescence and absorption spectra of Eu3+ in silicate glasses have been measured. The fluorescence intensity ratio of 5D0 → 7F2 to 5D0 → 7F1 transitions of Eu3+ increases with increasing ionic radius in the order of Li < Na < K for binary alkali silicate glasses and with decreasing ionic radius in the order of Ba < Sr < Ca for binary alkaline earth silicate glasses. It was found for the first time that the intensity ratio exhibited a maximum with the addition of alkaline earth oxides in alkali alkaline earth silicate glasses. The variation of intensity ratio and the Judd-Ofelt parameter, Ω2, with composition depended on the structural change in the vicinity of Eu3+ ions and EuO covalency.

[1]  R. Peacock.  The intensities of lanthanide f ↔ f transitions , 1975 .

[2]  John B. Gruber,et al.  OPTICAL-ABSORPTION INTENSITIES OF RARE-EARTH IONS IN CRYSTALS: THE ABSORPTION SPECTRUM OF THULIUM ETHYL SULFATE , 1965 .

[3]  P. Hagenmuller,et al.  Investigation of the structure of sodium borate glasses using Eu3+ fluorescence line narrowing , 1986 .

[4]  P. Hagenmuller,et al.  A structural interpretation of the Pb2+, Eu3+ and Nd3+ optical spectra in doped sodium borate glasses , 1985 .

[5]  G. S. Ofelt.  Structure of the f6 Configuration with Application to Rare‐Earth Ions , 1963 .

[6]  Hisayoshi Toratani,et al.  Compositional dependence of nonradiative decay rate in Nd laser glasses , 1982 .

[7]  Renata Reisfeld,et al.  Radiative and non-radiative transitions of rare-earth ions in glasses , 1975 .

[8]  M. Weber,et al.  Radiative and Nonradiative Transitions in the Fluorescence Decay of Eu3+ in SrTiO3 , 1965 .

[9]  B. Judd,et al.  OPTICAL ABSORPTION INTENSITIES OF RARE-EARTH IONS , 1962 .

[10]  G. S. Ofelt.  Intensities of Crystal Spectra of Rare‐Earth Ions , 1962 .

[11]  C. Jørgensen,et al.  Hypersensitive pseudoquadrupole transitions in lanthanides , 1964 .

[12]  Proulx,et al.  Absorption and emission spectroscopy of Eu3+ in metaphosphate glasses. , 1990, Physical review. B, Condensed matter.

[13]  Soga,et al.  Compositional dependence of Judd-Ofelt parameters of Er3+ ions in alkali-metal borate glasses. , 1992, Physical review. B, Condensed matter.

[14]  H. Kuroda,et al.  Radiative and nonradiative properties of neodimium doped silicate and phosphate glasses , 1982 .

[15]  A.M.A. van Dongen,et al.  Europium (III) in oxide glasses: Dependence of the emission spectrum upon glass composition , 1989 .

[16]  M. J. Weber,et al.  Probabilities for Radiative and Nonradiative Decay of Er 3 + in La F 3 , 1967 .

[17]  Setsuhisa Tanabe,et al.  Phonon sideband of Eu3+ in sodium borate glasses , 1990 .