Crystal field splitting of 4fn-15d-levels of Ce3+ and Eu2+ in nitride compounds

被引：92
作者：
Wang, Shuxin [1 ]
Song, Zhen [1 ]
Kong, Yuwei [1 ]
Xia, Zhiguo [1 ]
Liu, Quanlin [1 ]
机构：
[1] Univ Sci & Technol Beijing, Beijing Municipal Key Lab New Energy Mat & Techno, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2018年 / 194卷
基金：
中国国家自然科学基金;
关键词：
Crystal-field splitting; Nitride phosphor; 5d level; Ce3+; Eu2+; PECM; EMITTING SRLIAL3N4EU2+ PHOSPHOR; HIGH-TEMPERATURE SYNTHESIS; EARTH SILICON NITRIDES; LUMINESCENCE PROPERTIES; PHOTOLUMINESCENCE PROPERTIES; ELECTRONIC-STRUCTURE; 5D-LEVEL ENERGIES; TRANSITION ENERGIES; PRESSURE SYNTHESIS; M2SI5N8; M;
D O I：
10.1016/j.jlumin.2017.10.073
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 4f(n-1)5d-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.
引用
收藏
页码：461 / 466
页数：6
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