Tuning emission colour in Tm3+ doped Yb3+: KLnF4 (Ln = Y, Yb and Gd) upconversion phosphors

被引：4
|
作者：
Janani, Krishnamoorthy [1 ]
Ramasubramanian, Swaminathan [2 ]
Thiyagarajan, Panchacharam [3 ]
机构：
[1] Anna Univ, Crystal Growth Ctr, Chennai 25, Tamil Nadu, India
[2] Amrita Vishwa Vidyapeetham, Amrita Sch Engn, Dept Sci, Coimbatore 641112, Tamil Nadu, India
[3] Anna Univ, Dept Phys, Chennai 25, Tamil Nadu, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2020年 / 33卷
关键词：
Photoluminescence; Upconversion; Fluoride phosphor; Rare earth dopants; Energy Transfer; LUMINESCENT PROPERTIES; NANOPARTICLES; WATER; SIZE; UV;
D O I：
10.1016/j.matpr.2020.02.091
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Yb3+-Tm3+ codoped KLnF(4) (Ln = Y, Yb and Gd) phosphors have been synthesized by a solid-state reaction technique. The results revealed that KYF4 and KYbF4 phosphors crystallize in hexagonal structure and KGdF4 phosphor form in mixed phases. Prepared phosphors are subjected to photoluminescence studies under 980 nm and 356 nm wavelength excitation. The emission colour is examined using the CIE chromaticity diagram for the different host matrices. The results show that the developed phosphors could be useful in the field of lighting and emission colour tuning based applications. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2082 / 2085
页数：4
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