Nanorods metal

Enclosed nitrate filaments can be thermally decomposed to silver by a simple heat treatment. In opposition to electron irradiation that fragments the filaments, the simple heating yields continuous metal nanorods (see Fig. 6 for a silver filament generated by a 60 min. treatment at 400°C, pressure lO Torr). 

Cortie, M., Xu, X. and Ford, M. (2006) Effect of composition and packing configuration on the dichroic optical properties of coinage metal nanorods. Physical Chemistry Chemical Physics, 8, 3520-3527. 

Figure 3.4 Schematic view of plasmon modes of a metal nanorod.

Murphy CJ, Gole AM, Hunyadi SE, Stone JW, Sisco PN, Alkilany A, Kinard BE, Hankins P (2008) Chemical sensing and imaging with metallic nanorods. Chem Commun 544—557... 

One-dimensional colloidal gold and silver nano-structures by Murphy et al. (2006). Recent advances in the synthesis of metallic nanorods and nanowires are reviewed. The increasing relevance of the bottom-up chemical synthesis is underlined. Physical properties and potential applications are described with emphasis on silver and gold. 

T. R. Kline, W. F. Paxton, T. E. Mallouk, and A. Sen, Catalytic nanomotors Remote-controlled autonomous movement of striped metallic nanorods, An%ev/. Chem. Int. Ed. Eng. ASAP (2005). 

The nanowires in Fig. 10.5, straight and coiled, are believed to be SiNW. Experiments were performed to verify that they were not carbon nanotubes or metal nanorods. One method to prove this was by using a substrate other than Si. In this case, AI2O3 wafers replaced Si as the substrate to avoid interference from the Si substrate for characterization. The SiNW grown on Si are shown in Fig. 10.11, and those grown on the AI2O3 wafer are shown in Fig. 10.12. Characterization of these nanowires yielded that they were SiNW. 

CepakVM, Martin CR (1998) Preparation and Stability of Template-Synthesized Metal Nanorod Sols in Organic Solvents. J Phys Chem B 102 9985-9990... 

Readers interested in more specific details about synthesis strategies, mechanisms of nanorod formation, characterization, or factors influencing the morphology of noble metal nanorods are referred to a comprehensive review by Sau and Rogach [185]. Reviews by Kijima and Zhang et al. will provide additional, detailed information on the synthesis of other one-dimensional metal nanostructures (including nanowires and nanotubes) [186, 187]. 

Preparation of metal nanorods covered by carbon has been reported in the recent literature.10-35 37 The organo-metallic precursor route provides a means of preparing... 

In this study, a two-dimensional FDTD is performed to simulate the optical field on the metallic nanorod. This method also saves calculation time. In calculating the optical field on a nanoparticle, three-dimensional FDTD should be performed. In this case, the SP excited by both TE and TM modes of the waveguide can be studied. However, PC cluster should also be used to have enough memory to launch the simulation. 

Although the connection between SERS and SPPs is established in (1.2), how to effectively produce desirable SERS on a given metallic structure remains challenging. To address this issue, different plasmonic systems at different dimensionalities have been proposed, fabricated, and characterized with the same intention to maximize the local field strength at cOexc and cors [13-16]. A variety of structures have been found to support SERS well, including roughened metal electrodes, metal nanoparticles colloids, metal island films, metal nanorods, etc., or more specifically, substrates that contain nanoscale gaps or hotspots are particularly... 

Fig. 9.2. Cartoon showing the seed-mediated growth approach to the synthesis of metallic nanorods of controllable aspect ratio. In the first step, metal salts are reduced with sodium borohydride, a strong reducing agent, to metal nanospheres ( seeds ) that are 3-4 nm in diameter. In the subsequent growth steps.

Assembly of Metallic Nanorods Self-Assembly vs. Designed Chemical Linkages 293... 

Metallic nanorods are highly interesting materials from many points of view as elements in future nanoscale electronic circuits as sensors as catalysts as optical elements in future nanoscale optical devices. Gold and silver nanorods have distinct visible absorption and scattering spectra that are tunable with aspect ratio. Many workers have developed wet synthetic routes to these nanomaterials, with control of aspect ratio a key improvement compared to the synthesis of simple nanospheres. Another key area for which improvements need to be made is the understanding of the atomic arrangements of the different faces of crystalline... 

---