Simultaneous Growth of Pure Hyperbranched Zn<sub>3</sub>As<sub>2</sub> Structures and Long Ga<sub>2</sub>O<sub>3</sub> Nanowires

Through a facile and highly repeatable chemical vapor method, pure three-dimensional hyperbranched Zn<sub>3</sub>As<sub>2</sub> structures and ultralong Ga<sub>2</sub>O<sub>3</sub> nanowires were simultaneously grown with controllable locations in the same experiment. The hyperbranched Zn<sub>3</sub>As<sub>2</sub> consists of cone-shaped submicro-/nanowires and has a single-crystalline tetragonal structure. This is the first report of nano Zn<sub>3</sub>As<sub>2</sub> and hyperbranched Zn<sub>3</sub>As<sub>2</sub> structures. The as-grown Ga<sub>2</sub>O<sub>3</sub> nanowires are monoclinic single crystals. A vapor−solid−solid mechanism is suggested for the growth of the Ga<sub>2</sub>O<sub>3</sub> nanowires, and a vapor-solid mechanism, for the Zn<sub>3</sub>As<sub>2</sub> structures.