Energy transfer and heat-treatment effect of photoluminescence in Eu3+-doped TbPO4 nanowires

Di, Weihua; Wang, Xiaojun; Zhu, Peifen; Chen, Baojiu

doi:10.1016/j.jssc.2006.11.006

Cited by 75 publications

(67 citation statements)

References 24 publications

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“…3). The absence of this host excitation-mediated luminescence in the two present phases suggests the existence of significant nonradiative relaxation, as observed in Sm 3+ -doped KLaNb 2 O 7 bulk layered perovskite [12] and other Ln-doped oxides [36,37]. Excited at 388 nm, the emission spectra of the two present phases exhibit two main peaks, one in the blue region centered at 480 nm ( 4 F 9/2 → 6 H 15/2 ) and the other one in the yellow region at 576 nm ( 4 F 9/2 → 6 H 13/2 ), both characteristic of the Dy 3+ photoactivator [38].…”

Section: Photoluminescence Propertiesmentioning

confidence: 65%

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La0.90Dy0.05Nb2O7 nanosheet phosphor and its multilayer films with enhanced host excitation-mediated photoluminescence

Fu¹,

Lin²,

Chan³

et al. 2012

Journal of Alloys and Compounds

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Section: Photoluminescence Propertiesmentioning

confidence: 65%

“…It is well-known that photoluminescence intensity is related to the degree of the nonradiative relaxation process, which is largely affected by energy trapping [13,37]. A model for the energy transfer in the La 0.90 Dy 0.05 Nb 2 O 7 nanosheet is proposed in Fig.…”

Section: Photoluminescence Propertiesmentioning

confidence: 99%

La0.90Dy0.05Nb2O7 nanosheet phosphor and its multilayer films with enhanced host excitation-mediated photoluminescence

Fu¹,

Lin²,

Chan³

et al. 2012

Journal of Alloys and Compounds

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“…All diffraction peaks agree well with a hexagonal structure of TbPO 4 ·H 2 O [space group P3 1 21 (152), PDF card no . [22,28] Thermogravimetric analysis (TGA) further confirmed the hydrated nature of the derived hexagonal terbium phosphate ( Figure S1, Supporting Information). The endothermic peak at around 193°C in the differential scanning calorimetry (DSC) curve of the as-synthesized product is consistent with a sudden weight loss of 6.73 % in the TG plot, which results from the loss of about 1 mol of H 2 O from the product.…”

Section: Resultsmentioning

confidence: 81%

Controlled Synthesis of Terbium Orthophosphate Spindle‐Like Hierarchical Nanostructures with Improved Photoluminescence

Bao

Zhang

et al. 2009

Eur J Inorg Chem

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Nanostructured terbium orthophosphate (TbPO 4 ·H 2 O) nanostructures with enhanced photoluminescence were prepared through a controlled, simple, and template-free hydrothermal route. The structures and micromorphologies of the assynthesized TbPO 4 ·H 2 O were investigated by X-ray powder diffraction (XRD), thermogravimetric analysis, differential scanning calorimetry (TG-DSC), field-emission scanning electronic microscopy (FE-SEM), and X-ray photoelectron spectroscopy (XPS). The results showed that the TbPO 4 ·H 2 O spindle-like hierarchical nanostructures are composed of ordered nanorods of 80-90 nm in diameter and lengths of up

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“…Thermal treatment often provides an effective way to regulate the crystallinity and surface structures of lanthanidedoped nanophosphors, resulting in fewer surface defects and hydroxyl groups to produce enhanced luminescence [6,7]. However, high temperature disposal frequently induces larger particle size [8], which leads to lower packing densities, higher scattering of light and lower resolution for optical devices.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and enhanced luminescence of CaWO4:Eu3+/SBA-15 composites

et al. 2012

J Mater Sci

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Considering the combination of lanthanidedoped CaWO 4 nanophosphor and mesoporous matrix may contribute to superior luminescent properties, CaWO 4 : Eu 3? /SBA-15 composites were successfully synthesized in a mild condition. The physicochemical properties of the resultant composites were carefully characterized by X-ray diffraction, high-resolution transmission electron microscopy, inductive coupled plasma optical emission spectroscopy (ICP), N 2 adsorption-desorption, Fourier transform infrared spectroscopy, and luminescence spectra. It's found that the incorporation of CaWO 4 :Eu 3? showed no obvious impact on the ordered mesostructure of the host matrix SBA-15, which, however, led to a decrease of BET surface area from 836 to 187 m 2 g -1 for pure SBA-15 and CES (0.5), respectively. ICP results indicated that the real loaded amount of CaWO 4 :Eu 3? in SBA-15 host was lower than the initial molar ratios (x) of CaWO 4 :Eu 3? to SBA-15 for all samples. The maximum loaded level of CaWO 4 :Eu 3? in SBA-15 is about 27.3 %. Moreover, the real Eu 3? dopant concentration increased with the initial molar ratios (x), which showed a maximum of about 6.51 % at x = 0.25. The resultant CaWO 4 :Eu 3? /SBA-15 composites exhibited enhanced-luminescent properties than that of pure CaWO 4 :Eu 3? nanoparticles, which can be mainly attributed to the variation of Eu 3? dopant concentration and the hostprotect effect through interaction between guest molecules and host matrix. The available large surface area, pore volume, and superior luminescent properties would facilitate future applications for the composites.

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Energy transfer and heat-treatment effect of photoluminescence in Eu3+-doped TbPO4 nanowires

Cited by 75 publications

References 24 publications

La0.90Dy0.05Nb2O7 nanosheet phosphor and its multilayer films with enhanced host excitation-mediated photoluminescence

La0.90Dy0.05Nb2O7 nanosheet phosphor and its multilayer films with enhanced host excitation-mediated photoluminescence

Controlled Synthesis of Terbium Orthophosphate Spindle‐Like Hierarchical Nanostructures with Improved Photoluminescence

Synthesis, characterization, and enhanced luminescence of CaWO4:Eu3+/SBA-15 composites

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