Patent ID: 7309642

Claim:
A method for forming at least two quantum dots comprising: forming a superlattice structure comprising: providing a superlattice substrate; forming a plurality of alternating layers of a first material and a second material on the superlattice substrate to form a stack having a major surface parallel to that of the superlattice substrate, the second material differing from the first material; cleaving the stack normal to the major surface to expose the plurality of alternating layers; and etching the exposed plurality of alternating layers using an etchant that etches the first material at a greater rate than the second material to form at least one nanostrip comprising the second material, the at least one nanostrip protruding from the stack; providing a quantum dot substrate; transferring the at least one nanostrip comprising the second material from the superlattice structure to the quantum dot substrate; and removing at least a portion of the at least one nanostrip from the quantum dot substrate.