%0 Journal Article
%A Zhou, Lei
%A Tanner, Peter A.
%A Ning, Lixin
%A Zhou, Weijie
%A Liang, Hongbin
%A Zheng, Lirong
%D 2016
%T Spectral Properties and Energy Transfer between Ce3+ and
Yb3+ in the Ca3Sc2Si3O12 Host: Is It an Electron Transfer Mechanism?
%U https://acs.figshare.com/articles/journal_contribution/Spectral_Properties_and_Energy_Transfer_between_Ce_sup_3_sup_and_Yb_sup_3_sup_in_the_Ca_sub_3_sub_Sc_sub_2_sub_Si_sub_3_sub_O_sub_12_sub_Host_Is_It_an_Electron_Transfer_Mechanism_/3473813
%R 10.1021/acs.jpca.6b04641.s001
%2 https://acs.figshare.com/ndownloader/files/5469878
%K electron transfer mechanism
%K energy conversion
%K 3 Sc 2 Si 3 O 12 Host
%K garnet host
%K Energy Transfer
%K Yb
%K Spectral Properties
%K energy transfer
%K Electron Transfer Mechanism
%K Ce
%K energy transfer efficiency
%X The downshifting
from Ce3+ blue emission to Yb3+ near-infrared
emission has been studied in the garnet host Ca2.8–2xCe0.1YbxNa0.1+xSc2Si3O12 (x = 0–0.36).
The downshifting does not involve quantum cutting, but one incident
blue photon is transferred from Ce3+ to Yb3+ with an energy transfer efficiency up to 90% when x = 0.36 for the Yb3+ dopant ion. For x ≤ 0.15, a multiphonon-assisted electric dipole–electric
quadrupole mechanism of energy transfer dominates, while for the highest
concentration of Yb3+ employed, the electron transfer mechanism
is confirmed. A temperature-dependent increase of the Ce3+ → Yb3+ energy transfer rate does not exclusively
indicate the electron transfer mechanism. The application of the material
to solar energy conversion is indicated.
%I ACS Publications