Investigation of concentration quenching in Er3+:Bi2O3–B2O3–SiO2 glasses

Er2O3-doped Bi2O3–B2O3–SiO2 glasses were prepared by the conventional melt-quenching method, and the Er3+ :4I13/2 → 4I15/2 fluorescence properties have been studied for the different Er3+ concentrations. Infrared spectra were measured in order to estimate the content of OH− groups in samples. The constant KOH–ErKOH–Er, which represents the strength of interaction between Er3+ ions and OH− groups in the energy migration, was calculated to be 6.45×10−19 cm4s−1 for Er3+-doped bismuth boro silicate glasses. Based on the electric dipole–dipole interaction theory, the interaction parameter, CEr,ErCEr,Er, for the migration rate of Er3+ :4I13/2 → 4I13/2 in Er3+:Bi2O3–B2O3–SiO2 glasses was about 83.2×10−40 cm6s−1