ZnO/Polyfluorene Hybrid LED on an Efficient Hole‐Transport Layer of Graphene Oxide and Transparent Graphene Electrode

Abstract

An rGO/GO/PFO/ZnO/Al LED is fabricated by simple solution-based techniques. The results indicate that graphene can be a simple solution-processable substitute to PEDOT:PSS as an effective hole-transport (electron-blocking) layer and ITO as a transparent conductive electrode in optoelectronic devices. Wide emission range of this graphene-based LED opens up prospects for demonstrating white light-emitting devices from this novel combination.