Luminescence Tuning, Thermal Quenching, and Electronic Structure of Narrow-Band Red-Emitting Nitride Phosphors

被引：60

作者：

Cui, Dianpeng ^{[1
]}

Song, Zhen ^{[1
]}

Xia, Zhiguo ^{[1
]}

Liu, Quanlin ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China

来源：

INORGANIC CHEMISTRY | 2017年 / 56卷 / 19期

基金：

中国国家自然科学基金;

关键词：

SRLIAL3N4EU2+ PHOSPHOR; TRANSITION ENERGIES; EU2+; CE3+; PHOTOLUMINESCENCE; LANTHANIDES; CHEMISTRY; PRESSURE; RIGIDITY; DIVALENT;

D O I：

10.1021/acs.inorgchem.7b01816

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Exploring high-performance narrow-band red-emitting phosphor is an important challenge for improving white light LEDs. Here, on the basis of three interesting nitride phosphors with similar vierer rings framework structure, two phosphor series, Eu2+-doped Sr(LiAl)(1-x) Mg2xAl2N4 and Sr(LiAl3)(1-y)(Mg3Si)(y)N-4 (x, y = 0-1), are successfully synthesized by a solid state reaction. They show narrow band red emission with tunable emission peaks from 614 to 658 nm and 607 to 663 rim. The varying luminescence behaviors with composition and structure are discussed based on centroid shift, crystal field splitting and Stokes shift. On the basis of experimental data, we construct the host referred binding energy (HRBE) and vacuum referred binding energy (VRBE) schemes of divalent/trivalent lanthanide-doped end-member compounds, and further give thermal quenching mechanism of these series phosphors.

引用

页码：11837 / 11844

页数：8

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