Exploring Au Droplet Motion in Nanowire Growth: A Simple Route toward Asymmetric GaP Morphologies

摘要: Here we show a new nanowire growth procedure, exploring the thermally activated motion of Au droplets on III–V surfaces. We that by setting single parameter can activate crawling in vacuum and locally modify surface composition order to enhance vapor–solid (VS) along oxide-free areas trail metal particle. Asymmetric VS rates are comparable magnitude vapor–liquid–solid growth, producing unconventional wurtzite GaP morphologies, which shows negligible defect density as well optical signal green spectral region. Finally, demonstrate this effect also be explored different substrate compositions orientations with final shape finely tuned group III flow nanoparticle size. This distinct morphology for nanomaterials interesting design nanophotonics devices.