Optical investigation ofEu3+in a sodium borosilicate glass: Evidence for two different site distributions

Optical absorption and photoluminescence studies of Eu3+-doped phosphate and fluorophosphate glasses

“…1, the transitions originating from the 7 F 1 level are labeled along with the terminating level; where as the levels originating from the 7 F 0 to excited levels are shown without the 7 F 0 level. The band positions for the two glasses occur at almost the same wavenumbers and are presented in Table 1, which are similar to those reported for Eu 3+ -doped lithium borate [31], borosilicate [32] and sodium borosilicate [33] glasses. Fig.…”

Behaviour of simplified nuclear waste glasses under gold ions implantation: A microluminescence study

“…Same results are obtained for CJ3 and CJ7 samples. The assignment of Stark components (e 0 , e À , e + ) is discussed in the work of Pucker et al [8]. For each excitation wavelength, the six Stark components positions are recorded.…”

“…7 F 0 region. The Pucker's procedure [8] is adopted and the well defined 5 D 0 ! 7 F 1 transition in which the Stark sub levels are split into three components (2J + 1), is then studied.…”

Hyperfine Interactions at Lanthanide Sites in Europium Doped Oxide Glasses

“…The europium ions could occupy sites in one of the networks or in both at the same time. Using the very sensitive FLN technique, the co-existence of Eu 3+ ions in a sodium borate and in a silicate environment has been established for the ENBSO composition in an earlier investigation [16]. These results, however, do not provide a quantitative measure for the distribution of EU 3+ onto the two networks.…”

“…These results of course do not exclude the presence of two europium sites, as indicated by optical measurements [16]; but given the small relative amount of silicate sites, these sites can cannot be resolved in the Mössbauer spectrum. In any case, a strong preferential occupation of sites in the sodium borate network in the glass ENBSO is established in the present investigation and agrees perfectly with the behaviour of Nd 3+ ions in the same glass.…”