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Accelerating PLQY and RISC rates in deep-blue TADF materials with the acridin-9(10<i>H</i>)-one acceptor by tuning the peripheral groups on carbazole donors

Yongqiang Mei, Di Liu, Jiuyan Li, Jiahui Wang

2022Journal of Materials Chemistry C24 citationsDOI

Abstract

By tuning the peripheral groups on carbazole to increase the donor strength, the Δ E ST , Δ E TT and SOC are simultaneously optimized to facilitate the RISC and radiative transition. The EQE of 17.4% with CIE (0.15, 0.11) is realized in OLEDs.

Topics & Concepts

CarbazoleOLEDAcceptorMaterials scienceRadiative transferOptoelectronicsBlue lightPhotochemistryOpticsNanotechnologyCondensed matter physicsPhysicsChemistryLayer (electronics)Organic Light-Emitting Diodes ResearchPhotochemistry and Electron Transfer StudiesThin-Film Transistor Technologies
Accelerating PLQY and RISC rates in deep-blue TADF materials with the acridin-9(10<i>H</i>)-one acceptor by tuning the peripheral groups on carbazole donors | Litcius