Phases and Morphology of CuFeSe₂ Films Prepared by Electrodeposition

Abstract

In order to prepare CuFeSe₂ films at a low cost, the electrochemical behavior of the plating solution with different pH, and the effects of different electrodeposition potential, electrodeposition temperature and electrodeposition time on the phase formation and morphology of the electrodeposited CuFeSe₂ films were investigated. CuFeSe₂ films were prepared by electrodeposition using copper sulfate, ammonium ferrous sulfate, selenium dioxide and sodium citrate as raw materials. When the pH is 2.5, the electrodeposition potential is −0.6 V, electrodeposition time is 30 min and the electrodeposition temperature is 30 °C, the thin films are well crystallized, compact and uniform, and the micromorphology of the samples is granular crystal. In this paper, electrochemical workstation was used to test the electrochemical performance of the bath, XRD was used to characterize the phase of the sample, SEM was used to characterize the morphology of the sample.

Keywords:

• CuFeSe₂
• electrodeposition
• photovoltaic film

Additional information

Funding

This work was financially supported by the National Natural Science Foundation of China (No.51272140) and the Innovation Team of the Co-Innovation Center for Green Building of Shandong Province in Shandong Jianzhu University.