Abstract
Cu2-xTe nanoparticles with narrow size distribution and nanotubes have been successfully synthesized by varying reaction conditions under thermal decomposition method. X-ray powder diffraction (XRD) spectra were recorded to verify the structure of as-prepared nanocrystals. The morphologies of the nanocrystals were observed under scanning electron microscopy (SEM). Inductively coupled plasma atomic emission spectroscopy(ICP-AES) were analysed to confirm the composition of the Cu2-x nanoparticles which is Cu1.76Te. High-resolution transmission electron microscopy (HRTEM) were employed to characterize the crystalline nature and growth direction of the as-obtained products. Experimental results have shown that the reaction temperature and types of surfactant would affect the morphology of the Cu2-xTe nanocrystals. The optical and electricity properties of Cu2-xTe nanoparticle were also investigated, clearly revealed the localized surface plasmon resonances and low electrical resistance. The possible formation mechanism for saw-tooth surface morphology nanotubes was put forward by analyzing the products in different reaction time.