Vapor growth of one-dimensional ZnE(E=S, Se) nanowires

ZnE(E=S, Se) nanowires were successfully prepared in NiE(E=S, Se)-Zn system via a chemical vapor deposition (CVD) route. As-synthesized ZnE nanowires were characterized by means of XRD, EDS, SEM and PL spectra, which have the zinc-rich composition and the high crystalline quality. The ZnNi alloy was proved to play a key role during ZnE nanowire growth. The redox reaction actived VLS mechanism was found to govern the growth of ZnE nanowire, which bring about a case that the diameter of ZnE nanowires was controlled by the size of NiE nanocrystal.