Nanowires are filamentary crystals with a tailored diameter in the nanoscale range. Their especial morphology and dimensions render them especially interesting for the study of low dimensional phenomena and for opto-electronic and energy harvesting applications. In this presentation, I will explain how to synthetize high quality nanowire based heterostructures with molecular beam epitaxy for photonic applications. In particular, I will show two of our latest results obtained with self-catalyzed GaAs nanowires:
The formation of extremely high quality GaAs quantum dots in an AlGaAs shell to be used in quantum information technology
The advantages of nanowires in next generation photovoltaics which constitute a potential way to overcome the Shockley-Queisser limit in efficiency.