Identification of the Key Parameters for Horizontal Transition Dipole Orientation in Fluorescent and TADF Organic Light‐Emitting Diodes

F Tenopala‐Carmona, OS Lee, E Crovini… - Advanced …, 2021 - Wiley Online Library
In organic light‐emitting diodes (OLEDs), horizontal orientation of the emissive transition
dipole moment (TDM) can improve light outcoupling efficiency by up to 50% relative to …

Recent Advances in Solid‐State Lighting Devices Using Transition Metal Complexes Exhibiting Thermally Activated Delayed Fluorescent Emission Mechanism

GU Mahoro, J Fernandez‐Cestau… - Advanced Optical …, 2020 - Wiley Online Library
This review focuses on the state‐of‐the‐art of solid‐state lighting devices (SSLDs)—that is,
organic light‐emitting diodes (OLEDs) and light‐emitting electrochemical cells (LECs) …

High‐performance narrowband pure‐red OLEDs with external quantum efficiencies up to 36.1% and ultralow efficiency roll‐off

Y Zou, J Hu, M Yu, J Miao, Z Xie, Y Qiu… - Advanced …, 2022 - Wiley Online Library
High‐color‐purity blue and green organic light‐emitting diodes (OLEDs) have been
resolved thanks to the development of B/N‐based polycyclic multiple resonance (MR) …

A highly twisted carbazole‐fused DABNA derivative as an orange‐red TADF emitter for OLEDs with nearly 40% EQE

YC Cheng, XC Fan, F Huang, X Xiong… - Angewandte Chemie …, 2022 - Wiley Online Library
Multiple resonance (MR) type thermally activated delayed fluorescence (TADF) material is
currently a research hotspot in organic light‐emitting diodes (OLEDs) due to their high color …

Realizing record‐high electroluminescence efficiency of 31.5% for red thermally activated delayed fluorescence molecules

Z Cai, X Wu, H Liu, J Guo, D Yang, D Ma… - Angewandte …, 2021 - Wiley Online Library
Tailor‐made red thermally activated delayed fluorescence (TADF) molecules comprised of
an electron‐withdrawing pyrazino [2, 3‐f][1, 10] phenanthroline‐2, 3‐dicarbonitrile core and …

Approaching nearly 40% external quantum efficiency in organic light emitting diodes utilizing a green thermally activated delayed fluorescence emitter with an …

Y Chen, D Zhang, Y Zhang, X Zeng, T Huang… - Advanced …, 2021 - Wiley Online Library
Thermally activated delayed fluorescence (TADF) emitters featuring preferential horizontal
emitting dipole orientation (EDO) are in urgent demand for enhanced optical outcoupling …

Achieving 37.1% Green Electroluminescent Efficiency and 0.09 eV Full Width at Half Maximum Based on a Ternary Boron‐Oxygen‐Nitrogen Embedded Polycyclic …

X Cai, J Xue, C Li, B Liang, A Ying… - Angewandte Chemie …, 2022 - Wiley Online Library
Herein, a ternary boron‐oxygen‐nitrogen embedded polycyclic aromatic hydrocarbon with
multiple resonance thermally activated delayed fluorescence (MR‐TADF), namely DBNO, is …

Optimizing Charge Transfer and Out‐Coupling of A Quasi‐Planar Deep‐Red TADF Emitter: towards Rec. 2020 Gamut and External Quantum Efficiency beyond 30%

Z Li, D Yang, C Han, B Zhao, H Wang… - Angewandte Chemie …, 2021 - Wiley Online Library
Herein, we report a deep‐red TADF emitter pCNQ–TPA, composed of quinoxaline‐5, 8‐
dicarbonitrile (pCNQ) acceptor and triphenylamine (TPA) donor. pCNQ–TPA supported its …

Multi‐Resonance Building‐Block‐Based Electroluminescent Material: Lengthening Emission Maximum and Shortening Delayed Fluorescence Lifetime

X Cai, Y Pu, C Li, Z Wang, Y Wang - Angewandte Chemie, 2023 - Wiley Online Library
Multi‐resonance thermally activated delayed fluorescence (MR‐TADF) materials are
considered a class of organic materials with exceptional electronic and optical properties …

Simultaneously enhanced reverse intersystem crossing and radiative decay in thermally activated delayed fluorophors with multiple through‐space charge transfers

T Huang, Q Wang, S Xiao, D Zhang… - Angewandte …, 2021 - Wiley Online Library
Thermally activated delayed fluorescence (TADF) materials with through‐space charge
transfers (CT) have attracted particularly interest recently. However, the slow reverse …