High-Pressure Raman and Luminescence Study on the Phase Transition of GdVO<sub>4</sub>:Eu<sup>3+</sup> Microcrystals

Zhang, C. C.; Zhang, Z. M.; Dai, Rucheng; Wang, Z. P.; Zhang, J. W.; Ding, Zejun

doi:10.1021/jp106063c

Cited by 48 publications

(47 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The different red shift for the 5 D 0 → 7 F (0, 1,2) transitions of the Eu 3+ ions was observed in other nanomaterials in size about 10-60 nm (20,21). Contrary to the nanoparticle in microcrystals in size about 200-500 nm (12), the sharp emission peaks due to the 5 D 0 → 7 F 1 transition are located at 593.7 and 594.2 nm. The two strongest lines from the 5 D 0 → 7 F 2 transition are at 615 and 619 nm (12).…”

Section: Resultsmentioning

confidence: 75%

“…Peaks at 615 and 619 nm ( 5 D 0 → 7 F 2 transition) are electric dipole transition, while 593.7 and 594.2 nm ( 5 D 0 → 7 F 1 transition) are magnetic dipole transitions (12,13). The 5 D 0 → 7 F 1 , 5 D 0 → 7 F 3 , and 5 D 0 → 7 F 4 transition lines are henceforth neglected because they are disturbed by the sensor (SrFCl:Sm 2+ ) fluorescence.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

Jovanić

Bettinelli

Piccinelli

et al. 2015

Radiation Effects and Defects in Solids

View full text Add to dashboard Cite

This study considers the effects of hydrostatic pressure on the line position and fluorescence lifetime τ for 5 D 0 → 7 F 2 transitions in GdVO 4 : Eu 3+ nanocrystals. The results indicate that the pressure induced the red shift toward longer wavelengths for all the considered lines with different rate. The fluorescence lifetime τ nonlinearly decreases with pressure in the considered pressure range. High pressure induced the fluorescence lifetime τ that can be explained with a simple theoretical model. The measured line position and τ are in a satisfactory agreement with the theoretical calculations.

show abstract

Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

Jovanić

Bettinelli

Piccinelli

et al. 2015

Radiation Effects and Defects in Solids

View full text Add to dashboard Cite

show abstract

“…7,23−27 Unlike scheelite-type ABO 4 compounds in which the transition pressures would increase with the ratio r BO 4 /r A , where r BO 4 and r A present the radii of BO 4 units and A-site cation, 28 Errandonea et al found the zircon-to-scheelite phase transition pressure (P T ) for a specific family of zircon-type ABO 4 compounds is quite close and nearly independent of the A cation size. 11 For instance, the P T for orthovanadates is always around 7−8 GPa, 11,14,20 the P T for the silicates and phosphates is around 20 GPa, 7,23,27 and that for the chromates is below 6 GPa. 29 4 and PO 4 polyhedra probably make the zircon structure more stable, while cooperative interactions between the 3d electrons of the transition metals in vanadates and chromates could make the zircon structure less stable upon compression.…”

Section: ■ Introductionmentioning

confidence: 99%

High-Pressure Stability and Compressibility of Zircon-Type YV_1–xP_xO₄:Eu³⁺ Solid-Solution Nanoparticles: An X-ray Diffraction and Raman Spectroscopy Study

Yuan

Wang

et al. 2013

J. Phys. Chem. C

View full text Add to dashboard Cite

We probed the high-pressure response of the YV 1−x P x O 4 :Eu 3+ (x = 0, 0.5, 0.7, 1.0) solid-solution nanoparticles using angular dispersive synchrotron X-ray diffraction (XRD) and Raman techniques at room temperature. In situ diffraction results showed that the overall nanoparticles underwent an irreversible zircon-to-scheelite structural transformation. The transition pressures were ∼9.3, ∼12.1, ∼14, and ∼18.4 GPa for the YV 1−x P x O 4 :Eu 3+ (x = 0, 0.5, 0.7, 1.0) samples, respectively. Coupled with the zircon-toscheelite transition features, it was proposed that the transition pressure was probably governed by the stiffness of VO 4 /PO 4 units in the solid solutions. This claim was verified by further Raman measurements, which revealed that the stiffness of VO 4 /PO 4 units was enhanced with increasing P contents. The structural refinements showed that the samples with comparable particle size (20−90 nm) became less compressible with increasing P content (x = 0 → 0.7 → 1.0). However, the compressibility of the YV 0.5 P 0.5 O 4 :Eu 3+ sample with smaller particle size (10−30 nm) was similar to that of the YV 0.3 P 0.7 O 4 :Eu 3+ sample. The general compressibility behavior as a function of P content was ascribed to the special packing style related to the stiffness of VO 4 /PO 4 tetrahedra in zircon structure, and the higher surface energy contribution was responsible for the exceptional compressibility in the smaller nanoparticles. ■ INTRODUCTIONZircon-type ABO 4 ternary oxides are common accessory minerals, and they share many physical properties, as well as displaying variable degrees of solid solutions among end members existing in a wide variety of sedimentary, igneous, and metamorphic rocks. 1 The high-pressure research on zircon-type ABO 4 compounds has drawn considerable interest in the past several decades because it could provide a wide range of geochemical and geophysical investigations, including studies on the evolution of Earth's crust and mantle. 1,2 Apart from the geophysical importance, the rare-earth orthovanadates RVO 4 and orthophosphates RPO 4 currently attract considerable interest by virtue of their wide potential applications and interesting optical/luminescent properties. 3−6 They generally crystallize, depending on the ionic radii of the R cation, in two different structural types: zircon [space group (SG): I4 1 /amd, Z = 4] and monazite [SG: P2 1 /n, Z = 4]. Those with a small R size (r R < r La for RVO 4 and r R < r Gd for RPO 4 ) adopt the zircon structure under ambient conditions, whereas the others have the lower-symmetry monoclinic monazite structure. 7−9 Specifically, depending on the growth conditions, GdPO 4 , TbPO 4 , DyPO 4 , and HoPO 4 can adopt either zircon or monazite structure. 10 The high-pressure behavior of zircon-type RVO 4 and RPO 4 compounds was addressed recently. Upon compression, a direct transition to scheelite structure [SG: I4 1 /a, Z = 4] occurs in almost all the zircon-type RVO 4 compounds except CeVO 4 , which displays the complete zircon-to-monazite...

show abstract

“…The previous investigation results indicated that the luminescence properties of the phosphors depended on their sizes and morphologies [16,17], therefore, the controllable preparation of the size, microstructure and morphology of the phosphor have been paid much attention. Recently, GdVO 4 with different morphologies such as nanowires, nanorods, nanofibers and nanoparticles have been reported [5,[18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis and luminescence properties of GdVO4:Ln3+ (Ln=Eu, Sm, Dy) phosphors

Tang

Huang

Wang

et al. 2012

Journal of Alloys and Compounds

View full text Add to dashboard Cite

High-Pressure Raman and Luminescence Study on the Phase Transition of GdVO₄:Eu³⁺ Microcrystals

Cited by 48 publications

References 18 publications

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

High-Pressure Stability and Compressibility of Zircon-Type YV_1–xP_xO₄:Eu³⁺ Solid-Solution Nanoparticles: An X-ray Diffraction and Raman Spectroscopy Study

Hydrothermal synthesis and luminescence properties of GdVO4:Ln3+ (Ln=Eu, Sm, Dy) phosphors

Contact Info

Product

Resources

About

High-Pressure Raman and Luminescence Study on the Phase Transition of GdVO4:Eu3+ Microcrystals

Cited by 48 publications

References 18 publications

Study of the high pressure effect on nanoparticles GdVO4: Eu3+optical properties

Study of the high pressure effect on nanoparticles GdVO4: Eu3+optical properties

High-Pressure Stability and Compressibility of Zircon-Type YV1–xPxO4:Eu3+ Solid-Solution Nanoparticles: An X-ray Diffraction and Raman Spectroscopy Study

Hydrothermal synthesis and luminescence properties of GdVO4:Ln3+ (Ln=Eu, Sm, Dy) phosphors

Contact Info

Product

Resources

About

High-Pressure Raman and Luminescence Study on the Phase Transition of GdVO₄:Eu³⁺ Microcrystals

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

Study of the high pressure effect on nanoparticles GdVO₄: Eu³⁺optical properties

High-Pressure Stability and Compressibility of Zircon-Type YV_1–xP_xO₄:Eu³⁺ Solid-Solution Nanoparticles: An X-ray Diffraction and Raman Spectroscopy Study