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Journal of Materials Science: Materials in Electronics
Published in: Journal of Materials Science: Materials in Electronics 20/2021

08-09-2021

Cubic Ba2LaF7:Yb3+/Ln(Ln = Er3+,Ho3+) up-conversion submicron particles controllable synthesis and luminescence properties

Authors: Xu Zhang, Xueming Shi, Yuechun Hou, Zhongyuan Zhang, Xinyu Wang, Wenjing Yang, Weiling Yang, Lina Liu, Yanyan Zhou, Xuejian Zhang, Huisheng Liu, ShaSha Li, KeKe Huang, Chun Li, Hai Lin, Fanming Zeng, Zhongmin Su

Published in: Journal of Materials Science: Materials in Electronics | Issue 20/2021

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Abstract

In this paper, a co-doped cubic phase submicron particles Ba2LaF7:Yb3+/Ln3+ (Ln = Er3+,Ho3+) up-conversion material were successfully synthesized by hydrothermal method. By adjusting PH, time, temperature, and the amount of sodium citrate during the preparation process, it was possible to analyze and obtain the phase structure, morphology, and up-conversion luminescence characteristics of the particles. Furthermore, the influence of doping concentration on the up-conversion luminescence characteristics was studied using X-ray diffractometer (XRD), scanning electron microscopy (SEM), fluorescence spectroscopy, and other characterization methods. The test results show that, under the conditions of pH = 9 and NaBF4 as the fluorine source, Ba2LaF7:Yb3+/Ln3+ (Ln = Er3+,Ho3+) spherical particles have an average size of 240 nm. Under the excitation of a 980 nm laser-diode (LD) laser, it was found that the material spectrum is mainly composed of strong green and weak red light. When Yb3+ and Er3+ doping concentrations are 18% and 2.5%, Yb3+ and Ho3+ doping concentrations are 18% and 3.5%, respectively, the up-conversion transmittance is the highest. Finally, the possible causes of the fluorescence decay curve of Ba2LaF7:Yb3+/Ln3+ (Ln = Er3+,Ho3+) up-conversion materials were investigated.
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Metadata
Title
Cubic Ba2LaF7:Yb3+/Ln(Ln = Er3+,Ho3+) up-conversion submicron particles controllable synthesis and luminescence properties
Authors
Xu Zhang
Xueming Shi
Yuechun Hou
Zhongyuan Zhang
Xinyu Wang
Wenjing Yang
Weiling Yang
Lina Liu
Yanyan Zhou
Xuejian Zhang
Huisheng Liu
ShaSha Li
KeKe Huang
Chun Li
Hai Lin
Fanming Zeng
Zhongmin Su
Publication date
08-09-2021
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 20/2021
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-021-06945-9

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