Defect passivation and electron band energy regulation of a ZnO electron transport layer through synergetic bifunctional surface engineering for efficient quantum dot light-emitting diodes
Fensha Cai, Yufei Tu, Dadi Tian, Yan Fang, Bo Hou, Muhammad Ishaq, Xiaohong Jiang, Meng Li, Shujie Wang, Zuliang Du
Abstract
Bifunctional engineering leads to passivation of surface defects in ZnO NPs as well as elevation of the conduction band level of ZnO to promote charge balance. State-of-the-art blue QLEDs with an EQE of 16.31% and a T 50 @100 cd m −2 of 1685 h are achieved.
Topics & Concepts
PassivationBifunctionalElectron transport chainOptoelectronicsMaterials scienceQuantum dotDiodeElectronLight-emitting diodeLayer (electronics)NanotechnologyChemistryPhysicsQuantum mechanicsCatalysisBiochemistryZnO doping and propertiesQuantum Dots Synthesis And PropertiesPerovskite Materials and Applications