Facile One-Pot Solvothermal Synthesis of Nanocrystalline CdTe with Different Shapes

Abstract

One dimensional Cadmium Telluride (CdTe) with different morphology was successfully synthesized via a solvothermal process by controlling the nature of precursors and solvents at a moderate temperature of 180 °C. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy analyses revealed that in all cases highly pure and crystallized CdTe with cubic zinc blende structure were obtained. Field emission scanning electron microscope (FE-SEM) analysis revealed that high aspect ratio CdTe nanowires, CdTe nanobelts, and CdTe nanorods were obtained in the presence of ethylenediamine, ethanolamine, and triethylenetetramine, respectively. Also, it was found that the solvents influence on the morphology of CdTe nanostructures. UV-Vis absorption spectra of CdTe nanostructures prepared under different conditions exhibited a blue shift relative to that of bulk CdTe due to the quantum size effect.