One-pot synthesis, optical property and self-assembly of monodisperse silver nanospheres

Tang, Aiwei; Qu, Shengchun; Hou, Yanbing; Teng, Feng; Wang, Yongsheng; Wang, Zhanguo

doi:10.1016/j.jssc.2011.05.041

Cited by 17 publications

(13 citation statements)

References 43 publications

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“…On the other hand, strong adsorption of dendritic-structured Tween 80 on silver nanoparticles facilitates the cohesive interaction between the particles such as interdigitation and interpenetration [ 63 ], favoring the self-assembly of Ag nanoparticles. Similar arrays, including some hexagonal close-packed arrays, of noble metal nanoparticles have been reported before [ 64 , 65 ].…”

Section: Resultssupporting

confidence: 79%

Large-scale synthesis and self-organization of silver nanoparticles with Tween 80 as a reductant and stabilizer

Zhang

et al. 2012

Nanoscale Res Lett

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Tween 80 (polysorbate 80) has been used as a reducing agent and protecting agent to prepare stable water-soluble silver nanoparticles on a large scale through a one-pot process, which is simple and environmentally friendly. Silver ions can accelerate the oxidation of Tween 80 and then get reduced in the reaction process. The well-ordered arrays such as ribbon-like silver nanostructures could be obtained by adjusting the reaction conditions. High-resolution transmission electron microscopy confirms that ribbon-like silver nanostructures (approximately 50 nm in length and approximately 2 μm in width) are composed of a large number of silver nanocrystals with a size range of 2 to 3 nm. In addition, negative absorbance around 320 nm in the UV-visible spectra of silver nanoparticles has been observed, probably owing to the instability of nanosized silver colloids.

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Section: Resultssupporting

confidence: 79%

Large-scale synthesis and self-organization of silver nanoparticles with Tween 80 as a reductant and stabilizer

Zhang

et al. 2012

Nanoscale Res Lett

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“…As stated in previous reports, the presence of excess alkylthiol played an important role in the formation of highly-ordered superlattice structures [13]. With respect to Ag 2 S nanoparticles capped by DDT, the capping ligands on the surface of Ag 2 S nanoparticles promote the superlattice formation due to the cohesive interaction through interdigitation or interpenetration of alkyl chains of thiol-molecules [14].…”

Section: Resultsmentioning

confidence: 65%

Optical properties and self-assembly of Ag2S nanoparticles synthesized by a one-pot method

Wang

Tang

et al. 2012

Materials Letters

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“…For example, the Au nanoparticles with a narrow size distribution can be used to precisely evaluate the size effect in catalysis . Monodisperse nanoparticles can serve as building blocks for the fabrication of highly ordered superlattices or nanostructures . Without their narrow size and shape distribution, the nanoparticles would not form lattice.…”

Section: Introductionmentioning

confidence: 99%

Preparation of monodisperse bimetallic nanorods with gold nanorod core and silver shell and their plasmonic property and SERS efficiency

Xü

Zhou

Liu

et al. 2014

J Raman Spectroscopy

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In this study, monodisperse bimetallic nanorods with gold (Au) nanorod core and silver (Ag) shell (Au@AgNRs) were synthesized through seed‐mediated growth process by reduction of AgNO3 using Au nanorods with narrow size and shape distribution as seeds. With increasing the used amount of AgNO3, the Ag shell thickness of their lateral facets is raised faster than that of their two tips, leading to a decrease of their aspect ratios. Four plasmon bands are observable on the extinction spectra of Au@AgNRs, which are attributed to the longitudinal dipolar plasmon mode, transverse dipolar plasmon mode, and octupolar plasmon mode of the core‐shell structured bimetallic nanorods, respectively. As their Ag shell thickness increases, their longitudinal plasmon band blue‐shifts notably with the transverse plasmon band blue‐shifting and the two octupolar plasmon bands red‐shifting slightly, due to the decrease of their aspect ratios and enhancement of Ag plasmon resonance contribution. When used as surface‐enhanced Raman scattering (SERS) substrate for probing minute amounts of 4‐mercaptobenzoic acid in aqueous solution, Au@AgNRs have much stronger SERS activity than Au nanorods, and the obtained Raman signals are highly reproducible arising from their excellent monodispersity. Their SERS activity is remarkably increased with their Ag shell thickness thanks to the enhancing surface electric field and the chemical enhancement associated with electronic ligand effect. Copyright © 2014 John Wiley & Sons, Ltd.

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One-pot synthesis, optical property and self-assembly of monodisperse silver nanospheres

Cited by 17 publications

References 43 publications

Large-scale synthesis and self-organization of silver nanoparticles with Tween 80 as a reductant and stabilizer

Large-scale synthesis and self-organization of silver nanoparticles with Tween 80 as a reductant and stabilizer

Optical properties and self-assembly of Ag2S nanoparticles synthesized by a one-pot method

Preparation of monodisperse bimetallic nanorods with gold nanorod core and silver shell and their plasmonic property and SERS efficiency

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