Controllable hydrothermal synthesis and morphology evolution of Zn 4 B 6 O 13:Tb/Eu phosphors with tunable luminescent properties

被引：19
作者：
Lian, Wen-Li [1 ]
Liang, Pan [1 ,2 ]
Liu, Zhi-Hong [1 ]
机构：
[1] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Peoples R China
[2] Shaanxi Xueqian Normal Univ, Sch Chem & Chem Engn, Xian 710100, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2020年 / 31卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ENERGY-TRANSFER; CRYSTAL-STRUCTURE; OPTICAL-PROPERTIES; BORATE; PHOTOLUMINESCENCE; TB3+; NANOSTRUCTURES; GROWTH; LN; EU;
D O I：
10.1016/j.apt.2020.02.004
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A series of Tb, Eu single or co-doped Zn4B6O13 phosphors with tetrahedral morphology were synthesized by facile hydrothermal method. The influences of reaction temperature and the pH value of the reaction system on the structures and compositions of product were also investigated, in which four kinds of zinc borates with different structures and compositions (Zn4B2O7·H2O, Zn4B6O13, Zn(H2O)B2O4·0.12H2O, and H(Zn6O2(BO3)3)) were obtained. A possible growth mechanism of tetrahedral morphology of Zn4B6O13 has been proposed according to reaction time. The obtained samples were characterized by XRD, EDS, SEM, TEM, XPS, BET, DR, PL and QY. XPS results indicate that Eu2+ and Tb4+ are present in Tb/Eu co-doped Zn4B6O13, which might be generated from charge transfer between Tb3+ and Eu3+. The PL results shows that Eu3+, Tb3+ ion single-doped Zn4B6O13 microstructure exhibit orange and green emission under ultraviolet excitation, respectively. Compared to Eu3+ and Tb3+ single doped Zn4B6O13 phosphors, the Eu/Tb co-doped Zn4B6O13 phosphors showed stronger blue emission of Eu2+. These results imply that the tetrahedral morphology of Eu3+, Tb3+ ion single-doped and Eu2+/3+/Tb3+/4+ co-doped Zn4B6O13 phosphors have the promise application for nano/micro-optical functional devices. © 2020 The Society of Powder Technology Japan
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页码：1633 / 1642
页数：10
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