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Unique Spectral Overlap and Resonant Energy Transfer between Europium(II) and Ytterbium(III) Cations: No Quantum Cutting
Author(s) -
Zhou Lei,
Tanner Peter A.,
Zhou Weijie,
Ai Yeye,
Ning Lixin,
Wu Mingmei M.,
Liang Hongbin
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201703331
Subject(s) - europium , ytterbium , doping , energy transfer , electron transfer , chemistry , analytical chemistry (journal) , emission intensity , lanthanide , resonant inductive coupling , materials science , luminescence , atomic physics , ion , chemical physics , optoelectronics , physics , organic chemistry , chromatography
Samples of the Ca 3 Sc 2 Si 3 O 12 (CSS) host singly doped with Eu 2+ or Yb 3+ , doubly doped with Eu 2+ and Yb 3+ , and triply doped with Ce 3+ , Eu 2+ and Yb 3+ were synthesized by a sol–gel combustion process under reducing conditions. Unlike previous reports of Eu 2+ →Yb 3+ 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 Yb 3+ is further enhanced by co‐doping with Ce 3+ in addition to Eu 2+ . The quantum efficiencies of the doped materials range between 9 % and 93 %.