Growth of Au nanoparticle films and the effect of nanoparticle shape on plasmon peak wavelength

This work describes a method for the deposition of Au nanoparticles on glass plates (Au-glass). An electroless metal plating technique was extended to the Au nanoparticle deposition. The technique consisted of three steps that took place on the glass plate: (1) adsorption of Sn2+ ions, (2) deposition of metallic Ag nuclei generated by reducing Ag+ ions with Sn2+ ions on the Sn-adsorbed sites, and (3) deposition of Au nanoparticles by reducing Au+ ions on the Ag surface. TEM observation revealed that metallic Au nanoparticles with a size of nm were formed on the glass surface. A surface plasmon resonance absorption peak was observed, and its peak wavelength redshifted by immersing the Au-glass into a solution with a large dielectric constant. The redshift corresponded qualitatively to the calculation by the Mie theory accompanying the Drude expression, which was based on the change of the dielectric constant of the solution. The obtained results indicated that the Au-glass functioned as a sensor for measuring the dielectric constant of the solution.

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Novel Fabrication of Au Nanoparticle Films on Planar and Curved Surfaces of Glass and Fiber Materials

Langmuir ◽

10.1021/la9009465 ◽

2009 ◽

Vol 25 (17) ◽

pp. 9697-9702 ◽

Cited By ~ 16

Author(s):

Kwan Kim ◽

Ji Won Lee ◽

Hyang Bong Lee ◽

Kuan Soo Shin

Keyword(s):

Au Nanoparticle ◽

Curved Surfaces ◽

Nanoparticle Films ◽

Fiber Materials

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Real-Time Monitoring Distance Changes in Surfactant-Coated Au Nanoparticle Films upon Volatile Organic Compounds (VOCs)

The Journal of Physical Chemistry C ◽

10.1021/jp511014q ◽

2015 ◽

Vol 119 (9) ◽

pp. 5098-5106 ◽

Cited By ~ 9

Author(s):

M. C. Dalfovo ◽

L. J. Giovanetti ◽

J. M. Ramallo-López ◽

R. C. Salvarezza ◽

F. G. Requejo ◽

...

Keyword(s):

Volatile Organic Compounds ◽

Real Time ◽

Organic Compounds ◽

Au Nanoparticle ◽

Real Time Monitoring ◽

Nanoparticle Films ◽

Volatile Organic

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Design of TiO2/Au nanoparticle films with controlled crack formation and different architectures using a centrifugal strategy

RSC Advances ◽

10.1039/c4ra13829e ◽

2015 ◽

Vol 5 (10) ◽

pp. 7007-7017 ◽

Cited By ~ 8

Author(s):

Abdelhafed Taleb ◽

Frederic Mesguich ◽

Thomas Onfroy ◽

Xue Yanpeng

Keyword(s):

Crack Formation ◽

Crack Density ◽

Nanocomposite Films ◽

Au Nanoparticle ◽

Hybrid Nanocomposite ◽

Nanoparticle Films

Centrifugal strategy is demonstrated to enable the design of hybrid nanocomposite films with controllable architecture, porosity, crack density and thickness.

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Influence of Au Nanoparticle Shape on Au@Cu2O Heterostructures

Journal of Nanomaterials ◽

10.1155/2015/389790 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Jie Zhu ◽

Na Lu ◽

Wei Chen ◽

Lina Kong ◽

Yun Yang ◽

...

Keyword(s):

Semiconductor Heterostructures ◽

Au Nanoparticle ◽

Core Shell ◽

New Materials ◽

Final Structure ◽

Nanoparticle Shape ◽

Seed Growth ◽

Growth Method ◽

Shape And Size

Synthesis of metal-semiconductor heterostructures may allow the combination of function of the corresponding components and/or the enhanced performance resulting from the interactions between all the components. In this paper, Au@Cu2Ocore-shell heterostructures are prepared by a seed-growth method, using different-shaped Au nanocrystals as the seeds such as nanorods, octahedra, decahedra, dots, and nanocubes. The results revealed that the final structure of Au@Cu2Owas greatly influenced by the shape of the seeds used. Exposure of Cu2O{111}and Cu2O{001}favored when the overgrowth happened on Au{111}and Au{001}surface, respectively. The size of the product can also be tuned by the amount of the seeds. The results reported here provide a thinking clue to modulate the shape and size of core-shell nanocrystals, which is useful in developing new materials with desired performance.

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