Copper sulfide nanorods grown at room temperature for photovoltaic application

Abstract

Copper sulfide nanorods with various diameters and lengths were obtained by the electrodeposition method. Electrodeposition time can be used to control the diameter of the nanorods within the range of 30-35 nm. Electrodeposited copper sulfide thin films are grown at room temperature. Their structural, morphological, optical properties, chemical composition and Raman laser spectrum are studied. The room temperature films are utilized as a photocathode in photoelectrochemical (PEC) cell in 0.25 M polysulfide electrolyte. The experimental results show that, the electrodeposited thin films allow formation of light absorber, photosensitive, covellite copper sulfide. (c) 2012 Elsevier B.V. All rights reserved.