Concurrent growth of InSe wires and In2O3 tulip-like structures in the Au-catalytic vapour-liquid-solid process

In this work, the concurrent growth of InSe and In2O3 nanostructures, obtained by thermal evaporation of InSe powders onAu-covered Si substrates, has been investigated by scanning and transmission electronmicroscopy techniques. The vapour-solid andAu catalytic vapour-liquid-solid growthmechanisms, responsible of the simultaneous development of the two different types of nanostructures, i.e. InSewires and In2O3 tulip-like structures respectively, are discussed in detail. The thermodynamic processes giving rise to the obtainedmorphologies andmaterials are explained.