Abstract
The present study describes large-scale synthesis of transition metal chalcogenide in its nanoregime by an element-directed, less hazardous, template-free, inexpensive aqueous solution method. Nearly homogeneous green luminescent copper telluride (Cu2Te) nanoparticles (NPs) have been synthesized in a single reaction at 70 °C within 9 h by a wet chemical method. The method ensures almost complete utilization of the precursors with a very high productive yield. The product was well characterized by X-ray diffraction (XRD), UV−visible spectroscopy (UV−vis), Fourier transform infrared spectroscopy (FTIR), photoluminescence spectroscopy (PL), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), energy dispersive X-ray diffraction (EDX), and atomic force microscopy (AFM) techniques. XRD, TEM, and HRTEM analysis revealed that the diameters of the particles are in the range of 25−30 nm. The described protocol allows a precise control and a synchronized isolation of ali...
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