Solid-phase diffusion mechanism for GaAs nanowire growth
Controllable production of nanometre-sized structures is an important field of research, and synthesis of one-dimensional objects, such as nanowires, is a rapidly expanding area with numerous applications, for example, in electronics, photonics, biology and medicine. Nanoscale electronic devices created inside nanowires, such as p-n junctions(1), were reported ten years ago. More recently, hetero-