Coating silver

These alloys are of vital importance in the construction of modern aircraft and rockets. Aluminum, evaporated in a vacuum, forms a highly reflective coating for both visible light and radiant heat. These coatings soon form a thin layer of the protective oxide and do not deteriorate as do silver coatings. They are used to coat telescope mirrors and to make decorative paper, packages, toys. 

Langmuir-Blodgett films (LB) and self assembled monolayers (SAM) deposited on metal surfaces have been studied by SERS spectroscopy in several investigations. For example, mono- and bilayers of phospholipids and cholesterol deposited on a rutile prism with a silver coating have been analyzed in contact with water. The study showed that in these models of biological membranes the second layer modified the fluidity of the first monolayer, and revealed the conformation of the polar head close to the silver [4.300]. 

Silver coatings may blister above 200°C because of oxygen diffusion. A nickel undercoat stops interdiffusion with a copper substrate above 150°C. Alloying with antimony, selenium, sulphur or rhenium increases hardness—the coefficient of friction is also much reduced in the last case. ... 

Electroplating, (a) Silver ions are reduced to metallic silver by electrolysis. The silver coats the spoon to be plated, (b) The Oscar statue is gold plated. 

Figure 14. Reflectance of a 100 nm thick silver coating enhanced with two quarter-wave Sio2 layers.

Figure 3.33 Experimental results for degree of selectivity and conversion for ethylene when using micro-channel reactors with different thicknesses of silver coatings [42].

Moreover, we have found temporal fluctuation in TERS spectra of an adenine nanocrystal when we left the silver-coated cantilever (operated in contact mode) on the surface of the nanocrystal for 600 s [27]. Figure 2.11a shows a waterfall plot of a... 

The force effect is applicable to investigation of the mechanical properties of nanomaterials [28, 29]. We measured TERS spectra of a single wall carbon nanotube (SWCNT) bundle with a metallic tip pressing a SWCNT bundle [28]. Figure 2.13a-e show the Raman spectra of the bundle measured in situ while gradually applying a force up to 2.4 nN by the silver-coated AFM tip. Raman peaks of the radial breathing... 

Liu YC, Wang CC, Juang LC (2004) Sonoelectrochemical methods of preparing silver-coated Ti02 nanoparticles with extremely high coverage. J Electroanal Chem 574 71-75... 

Figure 3. Various type of SERS active metallic nanostructures (a) metal-island films (b) metal-coated nanospheres (semi-nanoshells) (c) metal-coated random nanostructures and (d) polymer coatings embedded with metal nanoparticles. Inset An SEM image of silver-coated polystyrene spheres.

Goudonnet J.P., Begun G.M., Arakawa E.T., Surface-enhanced Raman-scattering on silver-coated Teflon sphere substrates, Chem. Phys. Lett. 1982 92 197-201. 

Alak A.M., Vo-Dinh T., Silver-coated famed silica as a substrate material for surface-enhanced Raman-scattering, Anal. Chem. 1989 61 656-660. 

Bello J.M., Stokes D.L., Vo-Dinh T., Silver-coated alumina as a new medium for surfaced-enhanced Raman-scattering analysis, Appl. Spectrosc. 1989 43 1325-1330. 

Mohebbi, M. Fedosejevs, R. Gopal, V. Harrington, J. A., Silver coated hollow glass wave guide for applications at 800 nm, Appl. Opt. 2002, 41, 7031 7035... 

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