Enhancing the performance of blue quantum-dot light-emitting diodes through the incorporation of polyethylene glycol to passivate ZnO as an electron transport layer

Highly efficient blue quantum-dot light-emitting diodes have been realized by blending PEG into ZnO nanoparticles as an electron transport layer due to regulating charge balance and passivating the surface defect states of ZnO nanoparticles.