Upconversion luminescence of cubic and hexagonal structured SrTa4O11:Er3+/Yb3+ phosphors

被引：4

作者：

Wang, Xuekai ^{[1
]}

Cao, Yongze ^{[1
]}

Yan, Xianglan ^{[1
]}

Xu, Sai ^{[1
]}

Zhang, Jinsu ^{[1
]}

Liu, Tianshuo ^{[2
]}

Chen, Baojiu ^{[1
]}

机构：

[1] Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China

[2] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

来源：

DALTON TRANSACTIONS | 2024年 / 53卷 / 40期

基金：

中国国家自然科学基金;

关键词：

RARE-EARTH; ER3+; DEPENDENCE; EFFICIENCY; EMISSION; IMPROVE; SIZE;

D O I：

10.1039/d4dt02252a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cubic and hexagonal structured SrTa4O11(STO):Er3+/Yb3+ phosphors were synthesized by a solid state reaction (SSR) and molten salt synthesis (MSS). The upconversion luminescence (UCL) intensity of these samples was investigated. Hexagonal STO:Er3+/Yb3+ with much or a little beta-Ta2O5 can be synthesized by SSR in air or vacuum, respectively, and the UCL intensity of the sample synthesized by SSR in a vacuum is higher. Cubic STO:Er3+/Yb3+ can be synthesized by MSS with KCl flux, and hexagonal STO:Er3+/Yb3+ can be synthesized by MSS with B2O3 flux, which has the strongest UCL intensity among all the samples compared with samples prepared by SSR. The sample by MSS with B2O3 flux was acid pickled (AP) with HCl solution, and the green UCL intensity increased by 2.18 times, which reached 32.95% for beta-NaYF4:Er3+/Yb3+. The UCL intensity of the hexagonal STO:Er3+/Yb3+ is much higher than that of the cubic structure, which is due to the layered structure and the non-central symmetry of the Er3+/Yb3+ doped sites in hexagonal STO:Er3+/Yb3+. The temperature sensitivity of samples is evaluated by luminescence intensity ratio (LIR) technology. The maximum relative sensitivity is 0.0099 K-1 at 303 K. All the results show that hexagonal STO:Er3+/Yb3+ has excellent pure green UCL intensity and high temperature sensitivity, which can be used in UCL display and temperature sensing.

引用

页码：16530 / 16540

页数：11

共 38 条

[1] INFINITELY ADAPTIVE STRUCTURES [J].

ANDERSON, JS .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1973, (10) :1107-1115

[2] Primary thermometers based on sol-gel upconverting Er3+/Yb3+ co-doped yttrium tantalates with high upconversion quantum yield and emission color tunability [J].

Borges, Fernanda Hediger ;

Martins, Joana Costa ;

Caixeta, Fabio Jose ;

Pereira, Rafael Ramiro ;

Carlos, Luis Dias ;

Ferreira, Rute A. S. ;

Goncalves, Rogeria Rocha .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2022, 102 (01) :249-263

[3] Tb3+/Yb3+ codoped silica-hafnia glass and glass-ceramic waveguides to improve the efficiency of photovoltaic solar cells [J].

Bouajaj, A. ;

Belmokhtar, S. ;

Britel, M. R. ;

Armellini, C. ;

Boulard, B. ;

Belluomo, F. ;

Di Stefano, A. ;

Polizzi, S. ;

Lukowiak, A. ;

Ferrari, M. ;

Enrichi, F. .

OPTICAL MATERIALS, 2016, 52 :62-68

[4] Extremely intense green up-conversion luminescent and ultra-high temperature sensitivity in Er3+/Yb3+ co-doped BiTa7O19 phosphors [J].

Cui, Hongqiang ;

Cao, Yongze ;

Zhang, Yuhang ;

Cao, Long ;

Ran, Siying ;

Wang, Xin ;

Wu, Danyang ;

Li, Xiangping ;

Zhang, Xizhen ;

Chen, Baojiu .

JOURNAL OF LUMINESCENCE, 2022, 241

[5] Sc3+-induced double optimization strategies for boosting NIR-II luminescence and improving thermometer performance in CaF2: Nd3+, Nd3+/Yb3+@NaYF4 nanocrystals [J].

Dai, Mengmeng ;

Fu, Zuoling ;

Wang, Zhiying ;

Xu, Hanyu .

CHEMICAL ENGINEERING JOURNAL, 2023, 452

[6] Size dependence of the upconverted luminescence of NaYF4:Er,Yb microspheres for use in ratiometric thermometry [J].

Dong, Bin ;

Hua, Rui N. ;

Cao, Bao S. ;

Li, Zhi P. ;

He, Yang Y. ;

Zhang, Zhen Y. ;

Wolfbeis, Otto S. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (37) :20009-20012

[7] Temperature Sensing and In Vivo Imaging by Molybdenum Sensitized Visible Upconversion Luminescence of Rare-Earth Oxides [J].

Dong, Bin ;

Cao, Baosheng ;

He, Yangyang ;

Liu, Zhuang ;

Li, Zhipeng ;

Feng, Zhiqing .

ADVANCED MATERIALS, 2012, 24 (15) :1987-1993

[8] Citric-assisted sol-gel based Er3+/Yb3+-codoped Na0.5Gd0.5MoO4: A novel highly-efficient infrared-to-visible upconversion material for optical temperature sensors and optical heaters [J].

Du, Peng ;

Luo, Laihui ;

Park, Hun-Kuk ;

Yu, Jae Su .

CHEMICAL ENGINEERING JOURNAL, 2016, 306 :840-848

[9] THE SHIFT LATTICE - AN INTERPRETATION OF SOME INFINITELY ADAPTIVE STRUCTURES [J].

HARBURN, G ;

TILLEY, RJD ;

WILLIAMS, JM ;

WILLIAMS, RP .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1993, 440 (1908) :23-36

[10] CALORIMETRIC DETERMINATION OF ENERGY LEVELS IN RARE-EARTH AND YTTRIUM-IRON GARNETS [J].

HARRIS, AB ;

MEYER, H .

PHYSICAL REVIEW, 1962, 127 (01) :101-+

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