Suppression of halide migration and immobile ionic surface passivation for blue perovskite light-emitting diodes
Chan Beom Park, Yun Seop Shin, Yung Jin Yoon, Hyungsu Jang, Jung Geon Son, Seongheon Kim, Na An, Jae Won Kim, Jae Won Kim, Young Chul Jun, Gi-Hwan Kim, Jin Young Kim, Jin Young Kim
Abstract
The introduction of an immobile passivation material leads to the suppression of the deeper defect states of Cl-mixed perovskite nanocrystals, while the inevitable halide migration is hampered, resulting in high efficiency and spectral stability of blue PeLEDs.
Topics & Concepts
PassivationHalidePerovskite (structure)Materials scienceIonic bondingNanocrystalDiodeLight-emitting diodeOptoelectronicsInorganic chemistryChemical engineeringNanotechnologyIonChemistryLayer (electronics)Organic chemistryEngineeringPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesOrganic Light-Emitting Diodes Research