Upconversion white luminescence of TeO2:Tm3+/Er3+/Yb3+ nanoparticles

Hu, Hui; Bai, Yan

doi:10.1016/j.jallcom.2012.02.129

Cited by 22 publications

(5 citation statements)

References 38 publications

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“…3 F 4 and 3 F 2 ? 3 H 6 , respectively [12,13]. It is known that visible intensity I is approximately proportional to the nth power of pumping laser, I µ P n , where n is the number of NIR photons.…”

Section: Xrd and Sem Measurementsmentioning

confidence: 99%

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Up-conversion luminescence and electric properties of Tm3+/Yb3+ co-doped (0.94Na0.5Bi0.5TiO3–0.06BaTiO3) ceramics

Liu

Chai

et al. 2016

J Mater Sci: Mater Electron

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The Tm 3? /Yb 3? co-doped 0.94Na 0.5 Bi 0.5 TiO 3 -0.06BaTiO 3 (NBT-BT:Tm 3? /Yb 3? ) ceramics were synthesized by solid-state reaction and characterized by X-ray diffraction, SEM, luminescence, dielectric, ferroelectric and piezoelectric measurements. The XRD and SEM showed that all the ceramics were the single phase with perovskite structure. The up-conversion emissions located at 490 nm (blue, 1 G 4 ? 3 H 6 ), 551 nm (green, 3 F 3 ? 3 H 6 ) and 665, 699 nm (red, 1 G 4 ? 3 F 4 , 3 F 2 ? 3 H 6 ). Furthermore, two-photon absorption process would dominate the optimized UC emission intensity in NBT-BT:0.005Tm 3? / 0.02Yb 3? samples. Moreover, up-conversion temperature sensitivity was detected at NBT-BT:0.005Tm 3? /0.02Yb 3? samples with value of 0.068 K -1 related to the intensity ratio of I 669 and I 665 emissions. In addition, relatively good dielectric properties and ferroelectric properties (Pr = 60 l/cm 2 and Ec = 42 kV) were obtained in NBT-BT:0.005Tm 3? /0.005Yb 3? . Curie temperature enhanced with large amount of Yb 3? ions increasing (y [ 0.02). As multi-functional material, NBT-BT:Tm 3? /Yb 3? ceramics may be useful in high temperature electro-optical devices.

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Section: Xrd and Sem Measurementsmentioning

confidence: 99%

“…That is to say, two-photon absorption process would dominate in the up-conversion. [12][13][14]. Figure 4a shows the UC emission spectra of NBT-BT:Tm 3?…”

Section: Xrd and Sem Measurementsmentioning

confidence: 99%

Up-conversion luminescence and electric properties of Tm3+/Yb3+ co-doped (0.94Na0.5Bi0.5TiO3–0.06BaTiO3) ceramics

Liu

Chai

et al. 2016

J Mater Sci: Mater Electron

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“…This can be achieved by controlling the type and the amount of REIs. Hence there is a requirement for novel phosphor materials doped with different type and amount of REIs [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Intense Upconverted White Light Emission from Tm3+ - Er3+ - Yb3+ Doped Zinc Tungsten Tellurite Glasses

Bílír¹

2017

SDÜ Fen Bil Enst Der

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Abstract:The different amount of rare earth ions doped zinc tungsten tellurite glasses with the compositions (70-x-y-z)TeO2 -20ZnO -10WO3 -xEr2O3 -yTm2O3 -zYb2O3 (x = 0.3, 0.5; y = 0.3, 0.5; z = 3) have been synthesized using melt quenching technique. Özet: (70-x-y-z)TeO2 -20ZnO -10WO3 -xEr2O3 -yTm2O3 -zYb2O3 (x = 0.3, 0.5; y = 0.3, 0.5; z = 3) bileşimine sahip farklı miktarlarda nadir toprak iyonları katkılandırılmış çinko tungsten tellurit camları ergitme döküm tekniği kullanılarak sentezlenmiştir. Tm 3+ /Er 3+ /Yb 3+ üçlü nadir toprak iyonu katkılı çinko tungsten tellürit camlarında üst enerji dönüşümü ve enerji transfer süreçleri yoluyla elde edilen mavi, yeşil, kırmızı ve kızılötesi lüminesansları 975 nm diyot lazer uyarımı altında araştırılmıştır. Buna göre, şiddetli mavi (

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“…In recent years, they have been widely used in the field of host matrix such as photoinduced non-linear optical investigations [3], optical filters [4] and so on. Furthermore, TeO 2 nano-materials have attracted great interest in the fields of up-conversion luminescent materials [5,6], biomedical research [7,8] and sensors [9,10].…”

Section: Introductionmentioning

confidence: 99%

FTIR Study of Chemical Modification of Tellurium Oxide Nanoparticles by Dicarboxyl Amino Acids

Wu¹,

Bai²

2015

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

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The modification and modulation of dicarboxylic amino acids on tellurium oxide nanoparticles (TeO 2 NPs) were investigated by Fourier transform infrared spectroscopy. The TeO 2 NPs prepared in aspartic acid (Asp) or glutamic acid (Glu) were spheres with main size distribution of 30-80 nm. TeO 2 NPs were bound with Asp and Glu through a bidentate chelating mode and a bidentate bridging mode by the carboxyl group, respectively. Experimental Details Chemicals. Chemicals were all analytical grade. Sodium tellurite (Na 2 TeO 3) was purchased from Aladdin reagent Co. (China). Gallic acid (GA), acetum (HAc), aspartic acid (Asp) and glutamic acid (Glu) were purchased from Sinopharm Chemical Reagent Co. (China). Water was purified using a Milli-Q-system (Millipore, Bedford, MA, USA). Preparation of TeO 2 NPs Sol At room temperatures, 1.0 mL 10 mmol/L Na 2 TeO 3 were added into 2.0 mL 10 mmol/L Glu or Asp. Then the mixture solution was diluted to 10 mL with Milli-Q water. The color of the solutions

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Upconversion white luminescence of TeO2:Tm3+/Er3+/Yb3+ nanoparticles

Cited by 22 publications

References 38 publications

Up-conversion luminescence and electric properties of Tm3+/Yb3+ co-doped (0.94Na0.5Bi0.5TiO3–0.06BaTiO3) ceramics

Up-conversion luminescence and electric properties of Tm3+/Yb3+ co-doped (0.94Na0.5Bi0.5TiO3–0.06BaTiO3) ceramics

Intense Upconverted White Light Emission from Tm3+ - Er3+ - Yb3+ Doped Zinc Tungsten Tellurite Glasses

FTIR Study of Chemical Modification of Tellurium Oxide Nanoparticles by Dicarboxyl Amino Acids

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