中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 16 No. 1 February 2006 |
polyethylene glycol 400 as inducing template
（Nanomaterials Research Institute, College of Materials Science and Technology,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China）
Abstract:Solvothermal technique, an one-step soft solution-processing route was successfully employed to synthesize single crystalline CdS nanowires in ethylenediamine medium at lower temperature (170 ℃) for 1－8 d. In this route, polyethylene glycol 400 (PEG400) was used as surfactant, which played a crucial role in preferentially oriented growth of semiconductor nanowires. Characterizations of as-prepared CdS nanowires by X-ray powder diffraction(XRD), transmission electron microscopy(TEM) indicate that the naonowires, with typical diameters of 20nm and lengths up to several micrometers, have preferential [001] orientation. Also, investigations into the physical properties of the CdS nanowires were conducted with UV-Vis absorption spectroscopy and photoluminescence emission spectroscopy. The excitonic photo-optical phenomena of the nanowires shows the potential in the practical applications.
Key words: Ⅱ-Ⅵsemiconductor; cadmium sulfide; nanowires; single crystal; photoluminescence properties
