Abstract
This work reports a facile solution route for the synthesis of uniform PbS nanorods in high yield by the reaction of lead acetate trihydrate (Pb(CH3COO)2·3H2O) and thioacetamide (TAA) with the assistance of surfactant cetyltrimethylammonium bromide (CTAB). The morphology, structure and optical properties of the products were characterized by means of X-ray powder diffraction (XRD), energy-dispersive X-ray spectrometry (EDX), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis-NIR absorption spectroscopy and photoluminescence (PL) spectroscopy. It was found that the nanorods have a diameter of 36 nm and a length of 110 nm and show good UV-Vis-NIR absorption and PL emission properties. Moreover, a possible growth mechanism of formation PbS nanorods was proposed.
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