Aerotaxy - A Gas-Phase Nanowire Growth Technique

Sammanfattning: In this thesis an efficient nanowire fabrication technique, called Aerotaxy, is investigated. Traditional nanowire fabrication techniques include the use of a substrate as a point of nanowire nucleation which limits the amount of nanowires that can be produced per unit time. In contrary, Aerotaxy offers a continuous growth process, in the gasphase, which could substantially increase the rate at which nanowires are fabricated and thus lower their fabrication cost. Investigations of nanowire properties such as size, shape and crystal structure, with electron microscopy, show that growth can be controlled and tuned to a high degree. Optical properties investigated with photoluminescence reveal that as-grown nanowires have good optical properties and excellent spectral uniformity. Aerotaxy can thus be used to produce high-quality nanowires, that could be integrated into future opto-electronic devices, at a lower cost than other growth techniques offer.