Affiliation:
1. Department of Physics, Presidency College, Chennai, India
Abstract
Abstract
Cadmium sulfide nanorods were synthesized via a simple non ionic surfactant assisted hydrothermal method. Thioacetamide was selected as the sulfur source to maintain the homogeneity of the reaction environment and condition. Each of the nanorods is single crystalline. The length direction is along the c-axis of the crystal. The composition and purity of the samples were characterized using X-ray diffraction and energy dispersive X-ray analysis. Scanning electron microscopy and transmission electron microscopy images indicate that the surfactant, PEG 400, and reaction media played a key role in the formation of CdS nanorods. The formation of nanorods depends on the reaction media. Nanorods were formed in diluted strong acid solution media such as hydrochloric acid, nitric acid and not in acetic media. PEG assisted nanorods showed large aspect ratios and uniform faces compared with the sample prepared in the absence of PEG. The optical properties of the products were studied using photoluminescence spectroscopy.
Subject
Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics