Patent ID: 9166106
Filing Date: 2015-10-20
Classification: B82Y,H01L

Abstract:
1. A method of making a LED structure that comprises a support and a plurality of nanowires located on the support, wherein each nanowire comprises a tip and a sidewall, wherein the method comprises reducing or eliminating the conductivity of the tips of the nanowires compared to the conductivity of the sidewalls during or after creation of the nanowires; further comprising controlling nanowire growth conditions such that conductivity of the tips is reduced by at least one order of magnitude compared to the conductivity of the tips without the controlling of nanowire growth conditions; wherein reducing or eliminating the conductivity of the tips comprises forming an insulating layer over the nanowires after the creation of the nanowires, wherein the insulating layer is formed over an array of nanowires so that the insulating layer is layered on the tips and the sidewalls, then the array is subjected to etching under conditions that removes all or part of the insulating layer on the sidewalls but that leaves at least a larger thickness part of the insulating layer on the tips, and the insulating layer comprises SiOx.