Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7840712 | Journal of Luminescence | 2018 | 6 Pages |
Abstract
Recently a lot of Ce3+/Eu2+-activated nitride and oxonitride phosphors have been explored due to potential or practical application for white-light LEDs. In this paper, data of crystal field splitting of the 4fnâ15d-levels of Ce3+ and Eu2+ in nitride compounds is collected and analyzed. The relationship between the crystal field splitting and the coordination polyhedron around the Ce3+ and Eu2+ is revealed, showing that crystal field splitting is related to coordination number, polyhedron shape and size, while being irrelevant of the anion types. In addition, the crystal field splitting of Ce3+ and Eu2+ in the nitride compounds is correlated by a multiplication factor 0.76, which is in consistent with those in halides, sulfides and oxides. This paper makes it possible to predict luminescence properties of Ce3+- or Eu2+- doped nitride compounds.
Related Topics
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Physical and Theoretical Chemistry
Authors
Shuxin Wang, Zhen Song, Yuwei Kong, Zhiguo Xia, Quanlin Liu,