Patent ID: 8227348

Claim:
A method of patterning nanowire on a substrate, comprising the steps of: preparing a substrate having a patterned sacrificial layer of barium formed thereon through the steps of: coating a photoresist on a surface of the substrate; patterning the photoresist on the surface of the substrate, thereby forming at least a first area on said substrate surface covered by the patterned photoresist and at least a second area on each substrate surface being exposed; growing barium fluoride layer on said patterned photoresist on said at least first area and said exposed substrate surface on said at least second area by thermal deposition, thereby forming a sacrificial layer of barium fluoride; and lifting-off said patterned photoresist and a portion of said sacrificial layer positioned at said at least first area, thus forming a patterned sacrificial layer of barium fluoride on said at least second area; growing nanowires on the patterned sacrificial layer on said at least second area and on the exposed portion of said substrate surface on said at least first area of said substrate surface in a high-temperature environment at a temperature ranging from 600° C. to 1200° C.; and removing the patterned sacrificial layer from said at least second area using a solvent to remove the nanowires grown on the patterned sacrificial layer, thereby leaving the nanowires grown in direct contact with the substrate surface on said at least first area thereof, thereby forming a nanowire pattern.