Reaction temperature‐dependent growth of ZnS nanomaterials

Abstract

Zinc sulphide (ZnS) nanobelts and nanotubes with high yield are prepared by a simple chemical vapour deposition approach at different reaction temperature. The as-prepared products are characterised by several characterisation methods such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectrum and photoluminescence spectrum. It shows that the as-prepared ZnS products possess well-hexagonal wurtzite structures. Possible growth mechanisms of ZnS nanomaterials are proposed based on nucleation and oriental attachment. Photoluminescence spectrum of ZnS nanobelts shows a blue emission peak centred at 425 nm, which could be attributed to the defects associated with oxygen vacancies. Finally, the wettability of ZnS nanobelts is also investigated by water contact angle characterisation.