Intramolecular-locking modification enables efficient asymmetric donor–acceptor–donor′ type ultraviolet emitters for high-performance OLEDs with reduced efficiency roll-off and high color purity
Shengnan Wang, Rui Zhang, Ren-Feng Ding, Hao Huang, Haoyuan Qi, Yuchao Liu, Shian Ying, Dongge Ma, Shouke Yan
Abstract
High-performance donor–acceptor–donor′ type ultraviolet emitters have been achieved through an intramolecular locking strategy, realizing a high external quantum efficiency of 7.95% at 1000 cd m −2 and color coordinates of (0.167, 0.025).
Topics & Concepts
Intramolecular forceUltravioletOLEDAcceptorPhotochemistryMaterials scienceChemistryOptoelectronicsNanotechnologyStereochemistryLayer (electronics)PhysicsCondensed matter physicsOrganic Light-Emitting Diodes ResearchThin-Film Transistor TechnologiesOrganic Electronics and Photovoltaics