“…In recent years, nanowire growth in specialized environmental transmission electron microscopes has enabled investigation of the growth processes in real time. − In III-V nanowires, these studies help to establish connections between experimental parameters, real-time Au droplet composition, and the resulting nanowire morphology, growth rate, and properties such as crystal phase and composition. − Moreover, in III-As nanowires, a small number of in situ studies have focused on investigating the layer-by-layer growth and the two processes comprising it, namely the incubation and step-flow processes. − These describe the time it takes for a new layer to nucleate and, subsequently, the time it takes for the layer to cover the liquid–solid interface, respectively. This has revealed, for example, how the group III and group V precursors affect the incubation and step-flow processes independently, offering a deeper insight into the fundamentals of nanowire growth .…”