Energy transfer between Bi³⁺ → Eu³⁺, Bi³⁺ → Sm³⁺ and UO²⁺₂ → Eu³⁺ in oxide glasses

Probabilities and efficiencies of energy transfer from Bi³⁺ to Eu³⁺, Bi³⁺ to Sm³⁺ in borax and germanate glasses, and from UO²⁺₂ to Eu³⁺ in phosphate glass were measured. Enhancement of acceptor fluorescence by two orders of magnitude was achieved as a result of energy transfer. From the decrease of donor fluorescence lifetime the energy transfer from UO³⁺₂ to Eu³⁺ was found to be nonradiative.