Fig. 1. (a) Length of nanowires (LNWs) as a function of the diameter of the nanoparticle (DNP) for two different Au film thicknesses: 0.1 nm (black squares) and 0.5 nm (red circles). The blue curve represents the LNW = A + B/DNP fit. (b) A 45°-tilted SEM image of the GaAs/GaP NWs (growth stopped after step II) obtained with a 0.1 nm film thickness and 30 minutes of GaP growth time. (c) A HR-TEM image of the GaP portion of a representative GaAs/GaP NW oriented in the 〈2-1-10〉 zone axis, with its fast Fourier transform (FFT) as the inset.
