Synthesis and photoluminescence properties of KZnPO4: Dy3+, Sm3

A series of Dy3+/Sm3+ co-doped KZnPO4 phosphors were synthesized by the conventional solid-state reaction method. The crystal structure, luminescent characteristic and lifetime were studied by X-ray diffraction, photoluminescence properties and decay life. Dy3+/Sm3+ co-doped and Sm3+ doped KZnPO4 ph...

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Bibliographic Details
Published in:Optik (Stuttgart) 2020-01, Vol.201, p.163526, Article 163526
Main Authors: Duan, Jianjun, Sun, Shixue, Zhang, Yanjie, Yu, Jingjie, Zou, Nianyu, Zou, Ailing
Format: Article
Language:English
Subjects:
KZnPO4
Luminescence
Rare earth ions
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Summary:A series of Dy3+/Sm3+ co-doped KZnPO4 phosphors were synthesized by the conventional solid-state reaction method. The crystal structure, luminescent characteristic and lifetime were studied by X-ray diffraction, photoluminescence properties and decay life. Dy3+/Sm3+ co-doped and Sm3+ doped KZnPO4 phosphors exhibited high crystallinity in structure from XRD results. Under the ultraviolet (UV) or near-ultraviolet (NUV) excitation, KZnPO4: Dy3+, Sm3+ phosphors emitted adjustable color coordinates light by changing the content of Sm3+ ions, which indicated the phosphors might be of potential application in display and lighting. The optimum Sm3+ concentration is 0.005. Furthermore, energy transfer from Dy3+ to Sm3+ was confirmed by the emission spectra and the decay time of co-doped phosphors.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2019.163526