Abstract
Cadmium sulfide nanowires were successfully obtained via a poly (ethylene glycol)-assisted solvothermal route. In this procedure, cadmium nitrate and thiourea were used as Cd and S sources, respectively, and polyethylene glycol 400 was used as an inducing soft template to control the one-dimensional growth of CdS nanostructures. The effects of different growth parameters in the solvothermal process such as type of the solvents, reaction time, and temperature on the morphology, structural and optical properties of the products were investigated. The provided structures were characterized by X-ray diffractometery, scanning electron microscopy, and UV-visible absorption spectroscopy. The results show that the as-prepared samples have hexagonal phase and grow into long nanowire shape with increasing the reaction time, temperature and volume ratios of ethylenediamine (en) to H2O. Uniform sized nanowires with the average diameter of 75 nm and the average length of 2.5 µm were obtained using ethylenediamine solvent at 170 °C for 3 days.
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