Single-Composition White Light Emission from Dy<sup>3+</sup> Doped Sr2CaWO6.

Dai, Yannan; Yang, Shuai; Shan, Yongkui; Duan, Chun-Gang; Peng, Hui; Yang, Fan; Zhao, Qingbiao

Single-Composition White Light Emission from Dy³⁺ Doped Sr2CaWO6.

Dai, Yannan; Yang, Shuai; Shan, Yongkui; Duan, Chun-Gang; Peng, Hui; Yang, Fan; Zhao, Qingbiao.

Afiliación

Dai Y; School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China. 51164300103@stu.ecnu.edu.cn.
Yang S; School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China. 52174300002@stu.ecnu.edu.cn.
Shan Y; School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China. ykshan@chem.ecnu.edu.cn.
Duan CG; Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronics, East China Normal University, Shanghai 200241, China. cgduan@clpm.ecnu.edu.cn.
Peng H; Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronics, East China Normal University, Shanghai 200241, China. hpeng@ee.ecnu.edu.cn.
Yang F; School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China. fyang1@chem.ecnu.edu.cn.
Zhao Q; Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronics, East China Normal University, Shanghai 200241, China. qbzhao@ee.ecnu.edu.cn.

Materials (Basel) ; 12(3)2019 Jan 31.

Article en En | MEDLINE | ID: mdl-30708950

ABSTRACT

ABSTRACT

A series of Dy3+ ion doped Sr2CaWO6 phosphors with double perovskite structure were synthesized by traditional high temperature solid-state method. It was found that there is significant energy transfer between Dy3+ and the host lattice, and the intensities of emission peaks at 449 nm (blue), 499 nm (cyan), 599 nm (orange), 670 nm (red), and 766 nm (infra-red) can be changed by adjusting the concentration of dopant amount of Dy3+ ion in Sr2CaWO6. The correlated color temperature of Dy3+ ion doped Sr2CaWO6 phosphors can be tuned by adjusting the concentration of Dy3+ ion. Upon optimal doping at 1.00 mol% Dy3+, white light with chromaticity coordinate (0.34, 0.33) was emitted under excitation at 310 nm. Thus, single composition white emission is realized in Dy3+ doped Sr2CaWO6.

Palabras clave

double perovskite; energy transfer; photoluminescence; white light-emitting

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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2019 Tipo del documento: Article País de afiliación: China