**4. Conclusion**

Copper oxides, especially cuprous oxide, are of interest because of their applications in solar cell technology. The semiconductor cuprous oxide Cu2O film has been of considerable interest as a component of solar cells due to its band gap energy and high optical absorption coefficient. Since the properties of cuprous oxide not only depend upon the nature of the material but also upon the way they are synthesized, different methods and results obtained on the synthesis of cuprous oxide by various researchers are discussed in this chapter. The properties of the prepared cuprous oxide films related to surface morphology are presented too. In this chapter, the point is made on electrodeposition of cuprous oxide because electrodeposition techniques are particularly well suited for the deposition of metal oxides with thicknesses down to a few nm. The

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