Modulatory spin-flip of triplet excitons <i>via</i> diversiform electron-donating units for MR-TADF emitters towards solution-processed narrowband OLEDs
Shengyu Li, Zhi Yang, Yanchao Xie, Lei Hua, Shian Ying, Yuchao Liu, Zhongjie Ren, Shouke Yan
Abstract
BuCzBN-Ph-PSeZ-based solution-processed OLEDs can reach 21.3% and 19.4%, which are in the first tier of reported solution-processed MR-TADF binary OLEDs without employing additional sensitizers. This study provides a framework for modulating photoelectrical properties of MR-TADF emitters through fastidiously regulating LRCT and heavy-atom effects.
Topics & Concepts
OLEDNarrowbandSpin-flipExcitonOptoelectronicsSpin (aerodynamics)ElectronMaterials sciencePhysicsOpticsNanotechnologyCondensed matter physicsQuantum mechanicsLayer (electronics)ThermodynamicsScatteringOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsConducting polymers and applications