Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5398145 | Journal of Luminescence | 2016 | 5 Pages |
Abstract
Luminescence of Pr3+ in Li2SrSiO4 showed a broader f-f emission band compared with YAG:Pr3+. Atom parameters of Li2SrSiO4 crystal were refined to provide data for quantifying the distortion of [SrO8] polyhedron. The distortion of [SrO8] was compared with that of [YO8] polyhedron in YAG to show the different Pr3+ environments in Li2SrSiO4 and YAG. Then, Pr3+ was co-doped with Eu2+ in Li2SrSiO4 to provide a single phosphor for wLEDs. Energy transfer processes from 5d of Eu2+ to both 3P2 and 1D2 of Pr3+ were observed. The interaction type between Eu2+-Pr3+ was proved to be dipole-quadrupole and kinetics of the energy transfer process was discussed based on Inokuti-Hirayama model.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Liangliang Zhang, Jiahua Zhang, Xia Zhang, Zhendong Hao, Guo-Hui Pan, Huajun Wu,