| 초록 |
Cadmium Telluride (CdTe) nanocrystals are significant II-VI group semiconductor that have been widely studied because of their unique size-dependent optical properties. Recently, one-dimensional (1-D) inorganic nanostructures have become attractive due to their unique physical and chemical properties. As a result, several techniques to synthesize CdTe nanowires have been developed. One among them is a hydrothermal process, which offers significant advantages, such as chemical homogeneity, low temperature synthesis and reproducibility. In this work, CdTe nanowires were synthesized via a hydrothermal method. The effects of reducing agent, surfactant, reaction time, temperature variation and mechanism were investigated. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), ultraviolet-visible (UV-vis) absorption and photoluminescence (PL). The XRD pattern shows that the CdTe nanowires are in pure zinc blende phase. TEM images show that the average diameter and length of the nanowires are about 30 nm and 2μm, respectively. The characteristics of the CdTe nanowires will be presented and discussed in detail. |
