Abstract
Samples of the Ca3Sc2Si3O12 (CSS) host singly doped with Eu2+ or Yb3+, doubly doped with Eu2+ and Yb3+, and triply doped with Ce3+, Eu2+ and Yb3+ were synthesized by a sol–gel combustion process under reducing conditions. Unlike previous reports of Eu2+→Yb3+ energy transfer in other systems, the energy transfer is resonant in the CSS host and the transfer efficiency reaches 100 % for lightly doped samples. The transfer mechanism is multipolar rather than electron transfer for the sample compositions employed herein. The emission intensity of Yb3+ is further enhanced by co-doping with Ce3+ in addition to Eu2+. The quantum efficiencies of the doped materials range between 9 % and 93 %.
| Original language | English |
|---|---|
| Pages (from-to) | 10357-10361 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 56 |
| Issue number | 35 |
| DOIs | |
| Publication status | Published - 21 Aug 2017 |
User-Defined Keywords
- electron transfer
- lanthanides
- photochemistry
- quantum cutting
- silicates