Orientation control of LiCoO2 epitaxial thin films on metal substrates

Abstract We demonstrate the deposition of LiCoO 2 (11–20) epitaxial thin films on chemically etched Pt(110) substrates, and compare their electrochemical properties with those of LiCoO 2 (10–14) epitaxial thin films on sputter-annealed Pt(110) reconstructed substrates. Cyclic voltammogram measurements of LiCoO 2 (11–20) epitaxial films exhibit stable charge and discharge operations, despite the application of a compressive strain on the films.