Surface organic ligand-passivated quantum dots: toward high-performance light-emitting diodes with long lifetimes
Lishuang Wang, Ying Lv, Jie Lin, Jialong Zhao, Xingyuan Liu, Ruosheng Zeng, Xun Wang, Bingsuo Zou
Abstract
Short thiol-based ligands (1-dodecanethiol (DDT) and 1-octanethiol (OT)) are used to investigate the surface organic ligand effect on device performance. The OT-QDs based QLED reach an improved overall charge balance in the LEDs and a long operational lifetime over 420 000 h.
Topics & Concepts
Materials scienceLigand (biochemistry)PassivationQuantum dotDiodeOptoelectronicsLight-emitting diodeCharge (physics)OLEDPhotochemistryNanotechnologyChemistryReceptorLayer (electronics)PhysicsQuantum mechanicsBiochemistryQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsPerovskite Materials and Applications