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One dimensional Bi 2 S 3 nanorods have been successfully synthesized by a very simple reflux method with different precursor concentration for 2 hours at 180 °C. The as-synthesized Bi 2 S 3 powders were characterized by X-ray diffraction (XRD), high resolution scanning electron microscope (HRSEM), high resolution transmission microscope (HRTEM), UV-Vis spectrometer, Fourier transform infrared (FTIR) spectrometer. X-ray diffraction (XRD) results show that the resulting nanocrystals have an orthorhombic structure. X-ray diffraction patterns indicate a polycrystalline nature and the crystallite sizes seem increase with increase in the concentration. The HRSEM and HRTEM images reveal that the diameter of the nanorods increase with increasing concentration of the precursor. Morphological analysis reveals that the as-prepared Bi 2 S 3 nanorods can be tuned to morphology by varying precursor concentration from 0.01 M to 0.001 M. The bismuth nitrate, which is known to be a linear polymer, plays a critical role as a precursor and a template for the growth of uniform Bi 2 S 3 nanorods. Bi 2 S 3 nanorods are good absorbents of solar radiation and hence can be used in solar cells.

Morphology Manipulation and Related Properties of High Crystalline Bi2S3 Nanorods by Reflux Approach