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The designer optical resonances of metal nanoshells
Metal nanoshells consist of a dielectric or semiconducting core coated with a metallic layer of nanometer scale dimensions. Gold nanoshells with silica cores were fabricated by first attaching gold colloid to the surface ...
Reshaping the metallic surface of a gold nanoshell
Two methods for the controlled reshaping of metal nanoparticles have been investigated: pulsed laser induced reshaping and surfactant-mediated restructuring. The laser induced shape changes of gold nanoshells have been ...
Macroscopic assemblies of magnetically aligned carbon nanotubes
This work reports the successful production of macroscopic assemblies of aligned single walled carbon nanotubes (SWNTs) via filtration in a magnetic field of 25 Tesla. Such assemblies allow an unprecedented capability to ...
Nanoparticle assemblies and interactions
Silica nanoparticles coated with functionalized organosilane molecules are used as substrates for the formation of assemblies of gold nanoparticles. In an assembly of nanoparticles, the optical response of each nanoparticle ...
A density-functional study of ammonia chemisorption on the gallium(5) arsenic(5) cluster: Single and double adsorptions
I present a computational study of the reactivity between NH$\sb3$ and the $\rm Ga\sb5As\sb5$ cluster. A single NH$\sb3$ molecule approaches several sites on the cluster and the system is relaxed to its local lowest energy ...