Photoluminescence Enhancement of SiO2‐Coated LaPO4:Eu3+ Inverse Opals by Surface Plasmon Resonance of Ag Nanoparticles

Li, Jun; Yang, Zhaochu; Shao, Bo; Yang, Jinfang; Wang, Yida; Qiu, Jianbei; Song, Zhiguo

doi:10.1111/jace.14333

Cited by 13 publications

(3 citation statements)

References 29 publications

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“…Such special features of these glasses make them as useful for biosensors, for optical computing (because of their large nonlinear optical response with ultra fast response time) and for many other applications. The response time for these materials found to be in the range of picoseconds; this is an added advantage to enable processors with terahertz frequencies . Plasmonic materials are also predicted to be potential candidates for ultrafast optical switches and modulators since these materials exhibit third order nonlinear susceptibility χ (3) .…”

Section: Introductionmentioning

confidence: 99%

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

et al. 2018

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Na2O‐Sb2O3 glasses doped with different concentrations of Au2O3 were prepared by melt quenching technique and later were heat treated at 800°C for 6 hours. Structural analysis by XRD, XPS, SEM, EDS, and DSC techniques indicated that the samples are embedded with multiple crystallites composed of Sb3+, Sb5+, Au3+ ions, and Au0 metallic particles. These studies have further demonstrated a gradual increasing fraction of Au0 metallic particles with increasing Au2O3 concentration. IR spectral studies suggested increasing the degree of polymerization of the glass network (due to increasing concentration of Sb5+ ions that participate in the glass network with SbVO4 structural units) with rise in the concentration of Au2O3. Optical absorption spectra of the titled samples have exhibited a broad absorption band at about 530 nm predicted due to the surface plasmon resonance (SPR) and exhibited a spectral red shift with increasing intensity with increase in Au2O3 content. Photoluminescence (PL) spectra of the samples recorded (at λexc = corresponding SPR band position) exhibited an emission peak at about 580 nm (identified as being due to interband transition between sp and d bands of gold particles). Overall, the analysis of these results has confirmed increasing concentration of Au metallic particles with increase in Au2O3 content in the titled material. Finally, it is predicted that the presence of higher concentration of gold particles in the polymerized antimonate glass network makes the materials useful for designing different nano dimensional optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

et al. 2018

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“…However, the manufactures of these templates are also complex and costly. On the contrary, template-free methods involve relatively simple process steps and equipment [12][13][14][15]. Considering the cost, yield and simplicity, the polyol process has achieved significant improvements [16].…”

Section: Introductionmentioning

confidence: 99%

Flexible transparent electrodes based on silver nanowires synthesized via a simple method

Han

Zhang

et al. 2017

R. Soc. open sci.

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Silver nanowires (Ag NWs) with the length of approximately 60 µm and the diameter of approximately 300 nm are prepared via a simple, cost-effective, high-yield and eco-friendly procedure under a high molar concentration ratio of silver nitrate (AgNO3) solution to poly(vinyl pyrrolidone) solution. The pre-synthesized Ag NWs were analysed by scanning electron microscopy, X-ray diffraction and UV–visible spectrophotometer. Furthermore, the as-prepared silver nanowires were roll-coated on the surfaces of the polyethylene terephthalate (PET) substrates. By optimizing the concentration of silver nanowire solution, the flexible Ag NW/PET transparent electrodes with a sheet resistance of 3.8 Ω sq−1 at a transmittance of 70% can be fabricated. The results reported in this paper provide a basis for optimizing the growth of silver nanowires and performances of transparent electrodes.

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“…However, there are only a few reports on the Ag plasmon-enhanced emission of LaPO 4 -based phosphors. Li et al investigated the enhancement of luminescent properties in inverse opal and silica-coated inverse opal LaPO 4 :Eu 3+ structures after the addition of Ag nanoparticles [33,34]. For silica-coated inverse opal structures, they reported the enhancement factor of~7.…”

Section: Introductionmentioning

confidence: 99%

Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles

et al. 2020

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A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.

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Photoluminescence Enhancement of SiO₂‐Coated LaPO₄:Eu³⁺ Inverse Opals by Surface Plasmon Resonance of Ag Nanoparticles

Cited by 13 publications

References 29 publications

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

Flexible transparent electrodes based on silver nanowires synthesized via a simple method

Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles

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Photoluminescence Enhancement of SiO2‐Coated LaPO4:Eu3+ Inverse Opals by Surface Plasmon Resonance of Ag Nanoparticles

Cited by 13 publications

References 29 publications

Structural and physical characteristics of Au2O3‐doped sodium antimonate glasses – Part I

Structural and physical characteristics of Au2O3‐doped sodium antimonate glasses – Part I

Flexible transparent electrodes based on silver nanowires synthesized via a simple method

Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles

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Product

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Photoluminescence Enhancement of SiO₂‐Coated LaPO₄:Eu³⁺ Inverse Opals by Surface Plasmon Resonance of Ag Nanoparticles

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I