AFM Tip-Directed ID and 0D Assembling of Colloidal Au Nanoparticles on Silicon

Colloidal Nanoparticles have received renewed interests recently from the viewpoint of nanoscale science and technology. Using chemical assembling techniques, one can fabricate well-organized 2D nanoparticle arrays on solid substrates and use it as the Coulomb island for room temperature single electron tunneling^1], as nanoelectrode for electrochemistry studies^2], as active substrate for surface enhanced Raman scattering (SERS)^3,4],as lithographic mask for fabrication of nanostructures^5] and etc.