Growth of Crystalline Cu₂S Nanowire Arrays on Copper Surface: Effect of Copper Surface Structure, Reagent Gas Composition, and Reaction Temperature

The effect of copper surface structure, reagent gas composition, and reaction temperature on the growth of Cu 2 S nanowire arrays has been systematically investigated. Possible mechanisms for the Cu 2 S nanowire growth on copper surface have been discussed on the basis of the results of the present and previous works. The common feature of the proposed mechanisms for the Cu 2 S nanowire growth lies in the facile diffusion of the sulfur and copper species.