Ba0.7Sr0.3TiO3:Sm3+改性K0.5Na0.5NbO3钙钛矿氧化物陶瓷的光致发光性能

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Chalcogenide Letters Pub Date : 2023-08-01 DOI:10.15251/cl.2023.208.563

K. Sun, Z. Liu, R. X. Wang, X. Ling, J. W. Sun

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引用次数: 0

摘要

采用固相烧结法合成了具有钙钛矿型结构的Ba0.7Sr0.3TiO3:Sm3+改性KxNa（1-x）NbO3陶瓷。设计了Sm3+离子掺杂来取代ABO3结构中的A和B位，合成了化学式为Ba0.7Sr0.3-xSmx（Ti1-xSmx）O3（x=0.005、0.015、0.025）的Sm3+掺杂Ba0.7Sr0.3 TiO3（Ba0.7Sr0.30TiO3:Sm3+）氧化物前驱体粉末。将Ba0.7Sr0.3TiO3:Sm3+与K0.5Na0.5NbO3相结合，采用固相烧结法制备了钙钛矿型固溶体复合陶瓷。用X射线衍射方法研究了前驱体粉末和发光复合陶瓷的相结构。通过研究Ba0.7Sr0.3TiO3-K0.5Na0.5NbO3复合陶瓷材料中Sm3+离子的组成、激发波长和温度对光致发光的影响，系统地研究了Sm3+离子在Ba0.7Sr0.3miO3-K0.5Na0.5NbO_。

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Photoluminescence properties of Ba0.7Sr0.3TiO3:Sm3+ modified K0.5Na0.5NbO3 perovskite oxide ceramics

Ba0.7Sr0.3TiO3:Sm3+ modified KxNa(1-x)NbO3 ceramics with perovskite-type structure were synthesized via solid state sintering method. Sm3+ ions doping was designed for substituting both A and B sites in the ABO3 structure, Sm3+ doped Ba0.7Sr0.3TiO3 (Ba0.7Sr0.3TiO3:Sm3+) oxide precursor powders with the chemical formula of Ba0.7Sr0.3-xSmx(Ti1-xSmx)O3 (x=0.005 ， 0.015 ， 0.025) were synthesized. Combined Ba0.7Sr0.3TiO3:Sm3+ with K0.5Na0.5NbO3, the perovskite-type solid solution composite ceramics were fabricated via solid phase sintering method. X-Ray diffraction was used for investigating the phase structure of the precursor powders and luminescent composite ceramics. The photoluminescence properties of the Sm3+ ions in the Ba0.7Sr0.3TiO3-K0.5Na0.5NbO3 composite ceramic materials were systematically investigated by exploring the effects of composition of the composites, excitation wavelength and temperature on photoluminescence.

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来源期刊

Chalcogenide Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

CiteScore

1.80

自引率

20.00%

发文量

审稿时长

1 months

期刊介绍： Chalcogenide Letters (CHL) has the aim to publish rapidly papers in chalcogenide field of research and appears with twelve issues per year. The journal is open to letters, short communications and breakings news inserted as Short Notes, in the field of chalcogenide materials either amorphous or crystalline. Short papers in structure, properties and applications, as well as those covering special properties in nano-structured chalcogenides are admitted.