Light absorption and filtering properties of vertically oriented semiconductor nano wires

摘要

A nanowire array is described herein. The nanowire array comprises a substrate and a plurality of nanowires extending essentially vertically from the substrate; wherein: each of the nanowires has uniform chemical along its entire length; a refractive index of the nanowires is at least two times of a refractive index of a cladding of the nanowires. This nanowire array is useful as a photodetector, a submicron color filter, a static color display or a dynamic color display.

主权项

1. A nanowire array, comprising a substrate and a plurality of nanowires extending essentially perpendicularly from the substrate; wherein the nanowire array is operable as a color filter or the nanowires do not substantially couple;
wherein each of the nanowires has an essentially uniform chemical composition from one end of the nanowire to an opposite end of the nanowire in a longitudinal direction of the nanowire; wherein a ratio of a radius of the nanowires to a pitch of the nanowires is at most 0.5.