Investigation on the conductive properties of single MoO2 nanosheet

Abstract

Although metallic MoO2 is arising as a new type of conductive transition metal oxide in optoelectrical application. However, the contact and intrinsic conductive properties remain unknown. Here, the contact characteristic and intrinsic conductive of single MoO2 nanosheet grown by CVD method were investigated. It’s found that the contact of Ag with MoO2 was better than that of Au. At low bias condition, the measured intrinsic conductivity of MoO2 is as high as (2.5 ± 1.3) × 104 S/cm. With increasing bias, non-linear behavior in IV characteristic and breakdown behavior is observed due to the contact effect. The supported current density is around 107 A/cm2. The result shows that the MoO2 is a superior conductive transition metal oxide material for the low-voltage application.