Gold nanoparticles characteristic

Gold nanoclusters, luminescent properties, 12, 775 Gold nanoparticles, characteristics, 12, 495 -96 Gold-platinum clusters, as heterogeneous catalyst precursors,... 

Imura, K., Nagahara, T. and Okamoto, H. (2004) Characteristic near-field spectra of single gold nanoparticles. Chem. Phys. Lett., 400, 500-505. 

On detailed electrical characteristics of a SET transistor utilizing charging effects on metal nanoclusters were reported by Sato et al. [26]. A self-assembled chain of colloidal gold nanoparticles was connected to metal electrodes, which were formed by electron-beam lithography. The cross-linking of the particles as well as their connection to the electrodes results from a linkage by bifunctional organic molecules, which present the tunnel barriers. 

After supporting these sols on activated carbon, however, the obtained particle size depends on the capability of the protective agent to maintain the particle dimension. The obtained three catalysts, having different characteristics, are summarized in Table 3. As it is shown, mean size of gold nanoparticle obtained by TEM measurement did not always match with X-ray powder diffraction (XRPD) data. This result is not surprising as TEM measurements represent particle sizes, whereas from X-ray diffraction (XRD) it is possible to obtain crystallite dimensions that do not necessarily coincide with the size of... 

Tomography was applied during Transmission Electron Microscopy (TEM) analysis of various reduced Au/zeolite samples. The size and location of the gold nanoparticles as a function of the support characteristics and preparation method are discussed. 

Table 1 details the method of preparation and the chemical characteristics of the three studied samples which representative micrographs are shown in Figure 1. The table also reports the mean diameters of the gold nanoparticles that were evaluated from the histograms of particle sizes (fig. 1) established by counting the sizes of more than 10000 particles per sample... 

Fig. 38 Transmission electron micrographs of gold nanoparticles organized in 2D arrays through binding of two types of three-branched DNA motifs, (a) Array where only one tile contains 5 nm particles. The resulting arrangement has two different characteristic length scales, (b) Array where both tiles contain 5-nm particles, yielding an equally spaced pattern, (c) Array where one tile contains a 5-nm particle and the other tile contains a 10-nm particle. The pattern of alternating smaller and bigger spheres mimics the rhombic pattern of the tile array. Adapted with permission from [164]...

Amido ester enolates, with mono-Cp Ti(IV), 4, 449-450 Amidoferrocenylalkylthiol—gold nanoparticle system, characteristics, 12, 495... 

In the case of using a substrate with surface-relief nanostructures, overall trends would agree with what is mentioned in (Sect. 2.1.2), i.e., momentum-matching would occur at higher plasmon momentum. Since gold nanoparticles act as a target of supermolecules, plasmon momentum would be shifted further, which may induce nonlinear plasmon characteristics. Here, the effects of particle parameters, such as particle size, concentration, shape, and interaction distance between metal surface and nanoparticles, are discussed briefly based on experimental data of the interaction between particle plasmons and conventional SPs. 

The IR characterization of the films provides useful information for estimation of the materials structure. Addition of silver and gold nanoparticles to polymers shifted the band to the 1500-1600 cm range, that is characteristic for the stretching vibrations of rr-system of benzene rings. In the case of thiol-stabilized nanoparticles these changes are more evident and can be related to the same effect. The bands shift in IR-spectra at 1000-1150 cm allows us... 

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