Hydrothermal synthesis ultralong single-crystal Sb₂S₃ nanowires

Abstract

This paper describes an ethylene glycol (EG)-assisted approach to the ultralong Sb₂S₃ nanowires, formed by a simple hydrothermal reaction between SbCl₃ and Na₂S in the presence of distilled water. Transmission electron microscopy and scanning electron microscopy studies indicate that these Sb₂S₃ nanowires possess a diameter around 200 nm and length up to 100 μm. High-resolution transmission electron microscopy and selected area electron diffraction studies reveal that each Sb₂S₃ nanowire is a single-crystal along the [001] direction. The possible formation mechanism of the nanowires was discussed. The effects of volume ratio of ethylene glycol/water on the morphology of Sb₂S₃ nanowires were also investigated. Diffuse reflectance spectrum result shows that the final products have an apparent blue shift by quantum size effect.

Keywords

nanostructures / chemical synthesis / electron microscopy / electron diffraction

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