Hydrothermal Synthesis Ultralong Single-crystal Sb2S3 Nanowires

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 μ m.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.