Modeling of rough spherical nano particle Manipulation in pushing purposes based on nano robot AFM

In this paper, the dynamic behavior of rough spherical micro/nanoparticles, while being pushed on smoothsubstrates, is studied by means of an Atomic Force Microscope (AFM).For this purpose, two rough particles theoriesGeorge and Cooper been studied .Then, the dynamic model of rough particle manipulation on smooth substrates is revisedusing the contact theory of JKR for rough particle. And finally, the pushing of spherical particles with 50nm radii issimulated. Simulation of manipulation nano gold particle with different roughness on the base surface shows that theexistence of roughness causes the increase in amount of critical sliding friction due to ignoring of non-contact parameterin adhesion equation.

کلیدواژه ها:

Nano Manipulation ، Atomic Force Microscopy ، Roughness ، Contact mechanics