Patent ID: 8097304

Claim:
A method of forming a nano-particle array by convective assembly, comprising: coating a plurality of nano-particles to form a coating layer on the nano-particles; performing a first convective assembly by moving a first substrate facing, in parallel and spaced apart from a second substrate at a desired distance such that a colloidal solution comprising coated nano-particles is drawn into a space between the first and second substrate; performing a second convective assembly for evaporating a solvent by locally heating a front portion of the colloidal solution drawn by one of conductive heat and radiant heat when the first substrate is moved in parallel relative to the second substrate, and removing at least a part of the coating layer enclosing the nano-particles, wherein a distance between the nano-particles depends on a thickness of the coating layer disposed upon the nano-particles so that the nano-particles are uniformly arrayed in a regular interval and the distance is twice the thickness of the coating layer.