Benzothiadiazole based “hot exciton’’ materials for red electroluminescence with the maximum external quantum efficiency approaching 10%
Jie‐Ji Zhu, Guanhao Liu, Xin Lian, Junhong Pang, Ming‐De Li, Ying Wang, Qing‐Xiao Tong
Abstract
We developed two D–A–D′ type red materials with “hot exciton” feature. Experimental results proved that the choice of an electron transport group as D′ was important to improve charge transfer balance and realize high brightness.
Topics & Concepts
ExcitonElectroluminescenceMaterials scienceBrightnessCharge (physics)ElectronOptoelectronicsCondensed matter physicsEngineering physicsNanotechnologyOpticsQuantum mechanicsPhysicsLayer (electronics)Organic Light-Emitting Diodes ResearchPerovskite Materials and ApplicationsLuminescence and Fluorescent Materials