Optical properties of GaAsSb nanowire networks and GaAs nanomembranes

Abstract

Nanostructures, including nanowires, nanotrees, and membranes have potential applications in electronics, optoelectronics or solar cell applications. For example, the growth of branched nanowires (NWs) recently gained interest due to new developments in quantum optics and mesoscopic physics. Recent studies reported the growth of InAs and InSb NW networks that are the most promising material candidate for Majorana's braiding. Optimization and control of different geometrical configurations of the nanostructures requires detail understanding of their electronic and optical properties. Here, we present the result of a detailed investigation of optical properties and carrier dynamics of GaAsSb nanowire networks and GaAs nanomembranes.