Electrodeposition of Pd–Se thin films

Abstract

The presented research describes the electrochemical synthesis of Pd–Se thin films. The deposition process was accomplished in an aqueous chloride solution at a rotating disc electrode in the potential range from −0.4 to −0.6 V. The resulting coatings varied in both elemental and phase composition as well as surface morphology, depending on the potential. The difference is due to a change in the electrode reaction mechanism. A post-deposition heat treatment revealed the presence of Pd4Se in the coating deposited at −0.4 V and Pd17Se15 and Pd8Se in the other layers.

Keywords

• Electrodeposition
• Palladium
• Selenium palladium selenides
• Palladium chalcogenides
• Noble metal chalcogenides