Effect of cation substitution on luminescence properties of phosphor NaYPO4F:Ce3+: A comparison with LnPO4: Ce3+ (Ln = La and Y)

被引：4

作者：

Chen, Wanping ^{[1
]}

Qi, Chuanrun ^{[1
]}

Li, Lingling ^{[1
]}

Zhang, Haizhou ^{[1
]}

Mao, Xinping ^{[1
]}

机构：

[1] Huaihua Univ, Dept Chem & Chem Engn, Key Lab Rare Earth Optoelect Mat & Devices, Huaihua 418008, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2018年 / 196卷

基金：

中国国家自然科学基金;

关键词：

Phosphors; NaYPO4F; Ce3+; Photoluminescence; CRYSTAL-STRUCTURE;

D O I：

10.1016/j.jlumin.2017.12.033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Phosphor NaYPO4F: Ce3+ was synthesized via a high-temperature solid-state reaction, and Na+ and Y3+ ion were partially replaced by Li+ and La3+ ion, respectively. X-ray diffraction patterns, excitation and emission spectra were recorded to investigate the phosphors. The phosphor shows a typical doublet emission of Ce3+ ion in the spectral range similar to 310-420 nm. The emission peak of Ce3+ ion at short-wavelength side gradually enhances when Li+ ion gradually substitute for Na+ ion. The emission peak at short-wavelength side gradually decline when La3+ ion gradually substitute for Y3+ ion. The different luminescence behaviors among NaYPO4F: Ce3+, YPO4: Ce3+ and LaPO4: Ce3+ also are simply discussed according to the Ce3+ coordination environment. The results show that high concentration of Li+ or La3+ ion results in the occurrence of a second phase YPO4 or LaPO4, and that the optimal concentration of Li+ and La3+ ion are 0.4 and 0.2, respectively.

引用

页码：90 / 93

页数：4

共 12 条

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