Synthesis and luminescent properties of two different Y2WO6:Eu3+ phosphor phases

Llanos, Jaime; Olivares, Douglas; Manrı́quez, V.; Espinoza, Darío; Brito, Iván

doi:10.1016/j.jallcom.2014.12.161

Cited by 25 publications

(13 citation statements)

References 35 publications

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“…The results revealed that the samples are spherical and exhibit some tendency to aggregate, as shown in figure 1 [18]. The morphology of the layers was also inspected by SEM.…”

Section: Resultsmentioning

confidence: 99%

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A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

et al. 2018

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Y1.86Eu0.14WO6 phosphors were prepared using a solid-state reaction method. Their optical properties were analysed, and they was mixed with TiO2, sintered, and used as a photoelectrode (PE) in dye-sensitized solar cells (DSSCs). The as-prepared photoelectrode was characterized by photoluminescence spectroscopy, diffuse reflectance, electrochemical impedance spectroscopy (EIS) and X-ray diffraction. The photoelectric conversion efficiency of the DSSC with TiO2:Y1.86Eu0.14WO6 (100:2.5) was 25.8% higher than that of a DSCC using pure TiO2 as PE. This high efficiency is due to the ability of the luminescent material to convert ultraviolet radiation from the sun to visible radiation, thus improving the solar light harvesting of the DSSC.

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“…The results revealed that the samples are spherical and exhibit some tendency to aggregate, as shown in figure 1 [18]. The morphology of the layers was also inspected by SEM.…”

Section: Resultsmentioning

confidence: 99%

“…The Y 2 WO 6 :Eu 3+ phase was prepared via a solid-state reaction at high temperature [17,18]. All phosphors were synthesized from a thoroughly ground mixture of the corresponding oxides, Y 2 O 3 , Eu 2 O 3 and WO 3 , in stoichiometric proportions.…”

Section: Methodsmentioning

confidence: 99%

A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

et al. 2018

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“…Metal tungstates, such as Y 2 WO 6 [9,10], Bi 2 WO 6 [11], CaWO 4 [12,13] and ZnWO 4 [14,15], are investigated widely in a very long time because of their electric, optical and environmental applications.…”

Section: Introductionmentioning

confidence: 99%

DEGRADATION OF METHYLENE BLUE UNDER SOLAR LIGHT USING QUARTZ – Bi2WO6 NANOCOMPOSITES

2018

IJMTER

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Abstract-Photocatalysis is a catalytic oxidation process occurring on the surface of semiconductor photocatalyst materials by using the irradiation of light. It is applied as an effective, easy-operated with low cost to degrade the organic dyes pollutants. Quartz-Bi 2 WO 6 nanocomposites were synthesized by a co-precipitation method and characterized by X-ray diffraction (XRD), UV-vis-diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM) techniques. The photocatalytic activity of QuartzBi 2 WO 6 nanocomposites was evaluated by degrading methylene blue under the sunlight irradiation, revealing that Quartz-Bi 2 WO 6 nanocomposites exhibit a good photocatalytic activity. The photodegradation of MB follows pseudo first order kinetics. The most suitable operation conditions of Quartz-Bi 2 WO 6 nanocomposites at a concentration of 0.20 g/L, irradiation time-180 min, dye concentration 10 µM. Quartz-Bi 2 WO 6 nanocomposites is an efficient photocatalyst for the degradation of organic pollutants like MB under sunlight.

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“…Depending on the synthetic method, Y 2 WO 6 can crystallize in a tetragonal (S.G. P4/nmm), monoclinic (S.G. P2/c), or orthorhombic (S.G. P2 1 ab) form. [13][14][15][16] On the other hand, Borchardt identied Y 2 WO 6 as a bright photoluminescent material that emitted a pale blue light under ultraviolet excitation 17 showing that the excited tungstate groups can effectively transfer energy to doping activator ions. In the past few years, we have been actively involved in the preparation and characterization of new red-emitting phosphors.…”

Section: Introductionmentioning

confidence: 99%

Energy transfer in single phase Eu³⁺-doped Y₂WO₆ phosphors

2017

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Synthesis and luminescent properties of two different Y2WO6:Eu3+ phosphor phases

Cited by 25 publications

References 35 publications

A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

DEGRADATION OF METHYLENE BLUE UNDER SOLAR LIGHT USING QUARTZ – Bi2WO6 NANOCOMPOSITES

Energy transfer in single phase Eu³⁺-doped Y₂WO₆ phosphors

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Synthesis and luminescent properties of two different Y2WO6:Eu3+ phosphor phases

Cited by 25 publications

References 35 publications

A down-shifting Eu 3+ -doped Y 2 WO 6 /TiO 2 photoelectrode for improved light harvesting in dye-sensitized solar cells

A down-shifting Eu 3+ -doped Y 2 WO 6 /TiO 2 photoelectrode for improved light harvesting in dye-sensitized solar cells

DEGRADATION OF METHYLENE BLUE UNDER SOLAR LIGHT USING QUARTZ – Bi2WO6 NANOCOMPOSITES

Energy transfer in single phase Eu3+-doped Y2WO6 phosphors

Contact Info

Product

Resources

About

A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

A down-shifting Eu ³⁺ -doped Y ₂ WO ₆ /TiO ₂ photoelectrode for improved light harvesting in dye-sensitized solar cells

Energy transfer in single phase Eu³⁺-doped Y₂WO₆ phosphors