PHOTOELECTROCHEMICAL CHARACTERISTICS OF HYBRID STRUCTURE BETWEEN MoS2 FILM AND COPPER OXIDE NANOROD

Abstract

This paper reports on the synthesis of copper oxides (CuO) nanorods on
indium tin oxide coated by thin film (2D) MoS2 viathe annealing and metal–
organic chemical vapour deposition (MOCVD) methods. The 2D-MoS2/CuO
photocathode shows the photocurrent density of 8.7mA.cm2 ( = 0.70%) at
1.0V, which is higher than the pristine CuO photocathode (6.12mA.cm2,
 = 0.42%). The high PCD for CuO/MoS2 is attributed to high stability
andmore active sites of 2D-MoS2, lowering the electrochemical proton
reduction overpotential, as well as the built-in potential of Cu2O/CuO rod and
CuO/MoS2 heterojunction. From this result, we suggest the fabrication of the
hybridstructures (MoS2 and photocatalytic materials) for enhancing efficient
photoelectrochemical device.