Optical properties of Ca(MoxW1-x)O4: Eu3+ heteropoly salt phosphors

被引：13

作者：

Bai, Lin ^{[1
]}

Meng, Qingyu ^{[2
]}

Wang, Xianjie ^{[1
]}

Huo, Mingxue ^{[3
]}

Sui, Yu ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Normal Univ, Sch Phys & Elect Engn, Harbin 150025, Heilongjiang, Peoples R China

[3] Harbin Inst Technol, Res Ctr Basic Space Sci, Harbin 150001, Heilongjiang, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2019年 / 111卷

关键词：

Photoluminescence; Eu3(+); Heteropoly salt; Refractive index; PHONON COUPLING PROPERTIES; LUMINESCENT PROPERTIES; ENERGY-TRANSFER; TB3+;

D O I：

10.1016/j.materresbull.2018.11.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Ca(MoxW1-x)O-4: Eu3+ phosphors with different concentrations were prepared by a precipitation process. The crystal structure was confirmed to be body centered tetragonal scheelite by X-ray diffraction measurement, and the morphology was characterized by field emission scanning electron microscopy. The photoluminescence measurement, including emission spectra, excitation spectra and fluorescence decay curves, were carried out. The results indicate that the best Mo:W ratio is 6:4, since the integral intensity of Eu3+ red emission (616 nm) in Ca(MoxW1-x)O-4: Eu3+ phosphors increases nearly 100% and 65% compared with the intensities in CaMoO4: Eu3+ and CaWO4: Eu3+. In this work, the best doping concentration is confirmed to be 25 mol% in Ca (Mo0.6W0.4)O-4: Eu3+ phosphors. Exchange interaction was confirmed to dominate concentration quenching of Eu3+. Auzel's model was used to explain the self-generated quenching process of Eu3+ and obtain intrinsic lifetime of D-5(0) level. Furthermore, a new method was proposed for calculating the refractive index.

引用

页码：306 / 310

页数：5

共 22 条

[1]

[Anonymous], MAT RES B

[2] A fundamental self-generated quenching center for lanthanide-doped high-purity solids [J].

Auzel, F .

JOURNAL OF LUMINESCENCE, 2002, 100 (1-4) :125-130

[3] Effect of OH- on the luminescent efficiency and lifetime of Tb3+ doped yttrium orthophosphate synthesized by solution precipitation [J].

Di, WH ;

Wang, XJ ;

Chen, BJ ;

Lu, SZ ;

Zhao, XX .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (27) :13154-13158

[4] Synthesis and luminescent properties of Eu3+ doped Y2WO6 nanophosphors [J].

Hao Ruonan ;

Meng Qingyu ;

Liu Wei ;

Liu Hongling .

JOURNAL OF RARE EARTHS, 2013, 31 (09) :864-870

[5] Synthesis of Mn2+: Zn2SiO4-Eu3+:Gd2O3 nanocomposites for highly sensitive optical thermometry through the synergistic luminescence from lanthanide-transition metal ions [J].

Huang, Feng ;

Chen, Daqin .

JOURNAL OF MATERIALS CHEMISTRY C, 2017, 5 (21) :5176-5182

[6] Dy3+ ions doped oxy-fluoro boro tellurite glasses for the prospective optoelectronic device applications [J].

Krishna, V. Murali ;

Mahamuda, Sk. ;

Talewar, Rupesh A. ;

Swapna, K. ;

Venkateswarlu, M. ;

Rao, A. S. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 762 :814-826

[7] Electron-phonon coupling properties and energy transfer in NaY(WO4)2:Eu3+ phosphor [J].

Liu, Ting ;

Meng, Qingyu ;

Sun, Wenjun .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 647 :830-836

[8] Energy transfer and electron-phonon coupling properties in Gd2(WO4)3:Eu phosphor [J].

Liu, Zhixin ;

Meng, Qingyu ;

Liu, Hongliang ;

Yao, Chengbao ;

Meng, Qingguo ;

Liu, Wei ;

Wang, Weibo .

OPTICAL MATERIALS, 2013, 36 (02) :384-389

[9] Size-dependent excitation spectra and energy transfer in Tb3+-doped Y2O3 nanocrystalline [J].

Meng, Qingyu ;

Chen, Baojiu ;

Xu, Wu ;

Yang, Yanmin ;

Zhao, Xiaoxia ;

Di, Weihua ;

Lu, Shaozhe ;

Wang, Xiaojun ;

Sun, Jiashi ;

Cheng, Lihong ;

Yu, Tao ;

Peng, Yong .

JOURNAL OF APPLIED PHYSICS, 2007, 102 (09)

[10] INTENSITIES OF CRYSTAL SPECTRA OF RARE-EARTH IONS [J].

OFELT, GS .

JOURNAL OF CHEMICAL PHYSICS, 1962, 37 (03) :511-&

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