Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

Sheng, Tianqi; Fu, Zuoling; Wang, Jing; Fu, Xiquan; Yu, Yingning; Zhou, Shihong; Zhang, Siyuan; Dai, Zhenwen

doi:10.1039/c2ra20094e

Cited by 14 publications

(4 citation statements)

References 43 publications

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“…The photoluminescence excitation (λ em = 545 nm) spectrum of BaCe 0.995 Tb 0.005 F 5 nanocrystals in Figure b is similar to the photoluminescence excitation (λ em = 348 nm) spectrum of the BaCeF 5 nanocrystals in Figure a. On the basis of the above photoluminescence excitation spectrum of Tb 3+ -doped samples and photoluminescence spectrum of no Tb 3+ -doped samples, we can find that the emission band of Ce 3+ overlaps well with the excitation band of Tb 3+ . , Therefore, it is expected that a resonance-type energy transfer from Ce 3+ to Tb 3+ in Tb 3+ -doped BaCeF 5 nanocrystals may occur …”

Section: Resultssupporting

confidence: 66%

“…28,29 Therefore, it is expected that a resonance-type energy transfer from Ce 3+ to Tb 3+ in Tb 3+ -doped BaCeF 5 nanocrystals may occur. 30 Figure 4 gives the photoluminescence excitation (λ em = 597 nm) and photoluminescence emission (λ ex = 304 nm) spectra of the BaCe 0.955 Tb 0.005 Sm 0.04 F 5 nanocrystals. When the 597 nm emission of Sm 3+ was monitored, the BaCe 0.955 Tb 0.005 Sm 0.04 F 5 nanocrystal shows a broad excitation band peaking at 304 nm.…”

Section: Resultsmentioning

confidence: 99%

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Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Sheng¹,

Fu²,

Wang³

et al. 2012

J. Phys. Chem. C

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Novel monodisperse BaCeF 5 and BaCeF 5 : Tb 3+ , Sm 3+ nanocrystals have been successfully synthesized by a simple one-step solvothermal synthesis. Uniformly distributed nanocrystals with an octahedral morphology and particle size of 75−80 nm were observed. X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), photoluminescence (PL), and decay studies were employed to characterize the samples. Under ultraviolet irradiation, the BaCeF 5 : Tb 3+ , Sm 3+ samples exhibit the typical green emission band of the Tb 3+ ions, as well as an orangered and red emission bands of the Sm 3+ ions in the presence of Ce 3+ ions. The highly intense orange-red and red emission bands of the Sm 3+ ions were attributed to the effective energy transfer from the Tb 3+ to Sm 3+ ions, which has been justified through the luminescence spectra and the fluorescence decay dynamics. The luminescence colors of BaCeF 5 : Tb 3+ , Sm 3+ nanophosphors can be easily tuned by changing the concentration of Sm 3+ ions. These results suggest that BaCeF 5 : Tb 3+ , Sm 3+ nanocrystals can be explored for three-dimensional displays, back lighting, white light sources, and so on.

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Section: Resultssupporting

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Sheng¹,

Fu²,

Wang³

et al. 2012

J. Phys. Chem. C

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“…Rare-earth fluorides have been considered as excellent luminescent host materials for various optical active Ln 3+ ions, due to their low-energy phonons, high ionicity, high resistivity, and anionic conductivity. [24][25][26][27][28][29] They are widely used in various fields, such as optical telecommunication, lasers, novel optoelectronic devices, and biological labels. 30,31 In addition, Gd 3+ is an ideal paramagnetic relaxation agent used in magnetic resonance imaging because of its large magnetic moment and nanosecond time scale electronic relaxation time.…”

Section: Introductionmentioning

confidence: 99%

Inorganic-salt-induced morphological transformation and luminescent performance of GdF3 nanostructures

et al. 2013

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Inorganic-salt-induced morphological evolution of GdF3 crystals was demonstrated for the first time in a mild hydrothermal process. By varying the amount of inorganic salt, the GdF3 crystals could transform from uniform elliptic nanostructures to submicroplates. The increase of ionic strength, hindered diffusion of reactant ions, and selectively adsorption of barium cations were responsible for such morphological transformation. Besides, relatively low concentration of F(-) contributed to the formation of GdF3 in the presence of foreign inorganic salt, instead of ternary fluoride. In addition, the luminescence properties of the as-formed nanostructures were investigated by singly doping Eu(3+), Tb(3+), and Dy(3+) into the GdF3 matrix.

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“…The estimated mean crystallite size of NaY(MoO 4 ) 2 :1% Eu 3+ is about ∼20 nm. 29 As a typical case, SEM images of the NaY(MoO 4 ) 2 inverse opal and the corresponding PMMA opal template were characterized as shown in Fig. 1(c)-(d).…”

Section: Characterizationmentioning

confidence: 99%

Self-assembly and modified luminescence properties of NaY(MoO₄)₂:Tb³⁺, Eu³⁺inverse opals

Cui¹,

Zhu²,

Xu³

et al. 2014

Dalton Trans.

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Three-dimensional (3D) inverse opal photonic crystals can not only modulate the emissions of the inserted emitters, they also have the advantage of a large surface to volume ratio, which permits their use in noninvasive fluorescence detection. In this work, novel NaY(MoO4)2:Eu(3+) and NaY(MoO4)2:Tb(3+), Eu(3+) inverse opals were synthesized using a polymethylmethacrylate (PMMA) template by the sol-gel method. It was observed that the photoluminescence (PL) intensity and spontaneous decay rates (SDRs) of the inverse opals were suppressed, in contrast to the corresponding ground reference (REF) samples, due to the modulation of the effective refractive index (n(eff)). The concentration quenching of Eu(3+) and energy transfer from Tb(3+) to Eu(3+) were suppressed, due to the periodic empty cavity structure of the inverse opals.

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Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

Cited by 14 publications

References 43 publications

Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Inorganic-salt-induced morphological transformation and luminescent performance of GdF3 nanostructures

Self-assembly and modified luminescence properties of NaY(MoO₄)₂:Tb³⁺, Eu³⁺inverse opals

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Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

Cited by 14 publications

References 43 publications

Solvothermal Synthesis and Luminescence Properties of BaCeF5, and BaCeF5: Tb3+, Sm3+ Nanocrystals: An Approach for White Light Emission

Solvothermal Synthesis and Luminescence Properties of BaCeF5, and BaCeF5: Tb3+, Sm3+ Nanocrystals: An Approach for White Light Emission

Inorganic-salt-induced morphological transformation and luminescent performance of GdF3 nanostructures

Self-assembly and modified luminescence properties of NaY(MoO4)2:Tb3+, Eu3+inverse opals

Contact Info

Product

Resources

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Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Solvothermal Synthesis and Luminescence Properties of BaCeF₅, and BaCeF₅: Tb³⁺, Sm³⁺ Nanocrystals: An Approach for White Light Emission

Self-assembly and modified luminescence properties of NaY(MoO₄)₂:Tb³⁺, Eu³⁺inverse opals