System and Process for Producing Nanowire Composites and Electronic Substrates Therefrom

Abstract

The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.

1 . A process for depositing oriented nanowires comprising:
 (a) providing a first substrate having nanowires attached to a portion of at least one surface, wherein each nanowire has a first end attached to said portion; and   (b) depositing a material over said portion to form a nanowire-material composite;   (c) patterning said nanowire-material composite to form a patterned composite;   (d) separating said patterned composite from said first substrate; and   (e) applying said patterned composite to a second substrate such that said nanowires are aligned substantially parallel to said second substrate.