Tunable luminescence and energy transfer properties of LiSrPO4: Ce3+, Tb3+, Mn2+ phosphors

被引：41

作者：

Zhang, Zhi-wei ^{[1
]}

Hou, Jian-wei ^{[1
]}

Li, Jing ^{[1
]}

Wang, Xin-ya ^{[1
]}

Zhu, Xiao-yan ^{[1
]}

Qi, Hong-xia ^{[1
]}

Lv, Rui-jiao ^{[1
]}

Wang, Dong-jun ^{[1
]}

机构：

[1] Hebei Normal Univ Sci & Technol, Chem Engn Coll, Qinhuangdao 066600, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 682卷

关键词：

Phosphors; LiSrPO4:; Ce3+; Tb3+; Mn2+; Single-phase full-color phosphor; Luminescence; WHITE-LIGHT; UV; EMISSION;

D O I：

10.1016/j.jallcom.2016.05.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of single-composition phosphors LiSrPO4: Ce3+, Tb3+, Mn2+ have been prepared via a high-temperature solid-state reaction process. X-ray diffraction (XRD), scanning electric microscopy (SEM), photoluminescence (PL) spectra, and lifetimes were utilized to characterize the samples. The luminescence properties of Ce3+ in LiSrPO4 have been discussed. The energy transfer process from Ce3+ to Tb3+/Mn2+ has been demonstrated to be a resonant type via the dipoleedipole/quadrupole-quadrupole interaction mechanism, respectively. The emissive colors of LiSrPO4: Ce3+, Tb3+, Mn2+ samples can be adjusted from blue to green and from blue to red-orange by the energy transfer of Ce3+, Tb3+ and Ce3+, Mn2+, respectively. More importantly, white emission has been obtained through adjusting the relative concentrations of Ce3+, Tb3+ and Mn2+ ions in the LiSrPO4 host under UV. It is suggested the present phosphors can be potentially applied as a candidate of single-component white-light phosphor for UV-pumped w-LED. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：557 / 564

页数：8

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