Patent ID: 7294202

Claim:
A process for manufacturing binary self-assembled nanoparticles, which comprises the steps of: (I) providing a substrate, and forming an epitaxial buffer layer and part of device structure on the substrate; (II) initially maintaining a first reactant at a given molar flow rate; (III) completing at least one growth cycle for nanoparticle growth; and (IV) maintaining the first reactant at another given molar flow rate to recrystallize the nanoparticles under a temperature equal to or higher than that of nanoparticle growth and completing the remaining device structure growth, then lowering to ambient temperature; wherein the step (III) comprises: (a) second reactant stage: modulating the first reactant molar flow rate into a low molar flow rate or a zero molar flow rate and a second reactant molar flow rate to a high molar flow rate to form metal or metal-rich compound islands on the buffer layer; (b) first reactant stage: modulating the second reactant molar flow rate into a low molar flow rate or a zero molar flow rate and the first reactant molar flow rate into a high molar flow rate, so that metal or metal-rich compound islands form the binary nanoparticles.