In-situ growth of CdS nanobelts by annealing Cd foil at H2S atmosphere

We report here a simple in-situ methodology to grow CdS nanobelts on Cd foil via annealing under H2S/N2 flux. The maximum size of CdS nanobelt reaches 4 μm in width and 200 μm in length. CdS nanobelts crystallize in wurtzite structure, growing along (1 0 1¯ 0) direction. Grain boundaries in Cd foil induce the formation of the mesh pattern structure overwide the surface. And the cluster structure of CdS nanbelts is a result of rapid reaction between H2S and liquid form Cd outpouring through loopholes on the surface.