Optical Temperature-Sensing Performance of La2Ce2O7:Ho3+ Yb3+ Powders

被引：4

作者：

Chao, Jiameng ^{[1
,2
]}

Lin, Hui ^{[1
,2
]}

Yu, Dechao ^{[1
,2
]}

Hong, Ruijin ^{[1
,2
]}

Han, Zhaoxia ^{[1
,2
]}

Tao, Chunxian ^{[1
,2
]}

Zhang, Dawei ^{[1
,2
]}

机构：

[1] Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516 Jungong Rd, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China

来源：

MATERIALS | 2024年 / 17卷 / 07期

基金：

国家重点研发计划;

关键词：

optical temperature sensing; up-conversion emission; energy transfer; pyrochlore structure; UP-CONVERSION LUMINESCENCE; LANTHANUM-CERIUM OXIDE; THERMAL-EXPANSION; THERMOMETRY; PHOSPHOR; NANOPARTICLES; EMISSION; BEHAVIOR; SYSTEM; GREEN;

D O I：

10.3390/ma17071692

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, La2Ce2O7 powders co-activated by Ho3+ and Yb3+ were synthesized by a high temperature solid-state reaction. Both Ho3+ and Yb3+ substitute the La3+ sites in the La2Ce2O7 lattice, where the Ho3+ concentration is 0.5 at.% and the Yb3+ concentration varies in the range of 10 similar to 18% at.%. Pumped by a 980 nm laser, the up-conversion (UC) green emission peak at 547 nm and the red emission at 661 nm were detected. When the doping concentration of Ho3+ and Yb3+ are 0.5 at.% and 14% at.%, respectively, the UC emission reaches the strongest intensity. The temperature-sensing performance of La2Ce2O7:Ho3+ with Yb3+ was studied in the temperature range of 303-483 K, where the highest relative sensitivity (S-r) is 0.0129 K-1 at 483 K. The results show that the powder La2Ce2O7:Ho3+, Yb3+ can be a potential candidate for remote temperature sensors.

引用

页数：9

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