Optical and Photocatalytic Properties of Cu_xS/ZnO Composite Thin Films Deposited by Robotic Spray Pyrolysis Deposition

Figure 4

Optical transmittance spectra of (a) ZnO, (b) Cu_xS-ZnO after annealing at 400°C, (c) Cu_xS-ZnO as deposited at 300°C, and (d) Cu_xS.