Barrier heights of polymer-electrode interfaces measured via photo injection current method

The metal-polymer contact interface plays a major role in the conduction and breakdown process flexible dielectrics. Enhancing barrier heights has been investigated for effectively blocking charge injection thus impeding degradation of dielectrics field. However, electronic band structure at metal-dielectric its relationship with electrical insulation properties are still not well understood due to complex morphological details interfacial region. Here, we determine height profiles various sets metal electrodes dielectric polymers systems by utilizing photo current method. Our results reveal that all aromatic tend have lower than aliphatic polymers, believe chemical prominent determining heights. Additionally, an important trend polymers/metal configurations found those higher glass transition temperatures feature however correlations uncovered this work unveil effective approach rational modifying build can efficiently block reliable performance elevated temperatures.