scholarly journals Weaving host matrixes with intermolecular hydrogen bonds for high-efficiency white thermally activated delayed fluorescence

2021 ◽  
Author(s):  
Hui Xu ◽  
Yuee Tian ◽  
Huiqin Wang ◽  
Yi Man ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Large Scale ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Low Cost ◽  
Single Layer ◽  
Delayed Fluorescence ◽  
Great Promise ◽  
Thermally Activated Delayed Fluorescence ◽  
Organic Light Emitting Diode ◽  
Thermally Activated

Thermally activated delayed fluorescence (TADF) white organic light-emitting diode (WOLED) holds great promise for low-cost, large-scale lighting applications. Nevertheless, manipulating exciton allocation in a white TADF single layer is still...

scholarly journals Virtual Screening of TADF Emitters for Single-Layer OLEDs

2021 ◽  
Vol 9 ◽  
Author(s):  
Kun-Han Lin ◽  
Gert-Jan A. H. Wetzelaer ◽  
Paul W. M. Blom ◽  
Denis Andrienko
Keyword(s):  
Light Emitting Diode ◽  
Single Layer ◽  
Delayed Fluorescence ◽  
Hole Transport ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Organic Light ◽  
Donor And Acceptor

Thermally-activated delayed fluorescence (TADF) is a concept which helps to harvest triplet excitations, boosting the efficiency of an organic light-emitting diode. TADF can be observed in molecules with spatially separated donor and acceptor groups with a reduced triplet-singlet energy level splitting. TADF materials with balanced electron and hole transport are attractive for realizing efficient single-layer organic light emitting diodes, greatly simplifying their manufacturing and improving their stability. Our goal here is to computationally screen such materials and provide a comprehensive database of compounds with a range of emission wavelengths, ionization energies, and electron affinities.

Why Triage the Materials with Low Luminescence Quantum Efficiency: The Use of 35Cbz4BzCN as a Universal Host for Organic Light Emitting Diode through Effective Triplet Energy Transfer

2021 ◽  
Author(s):  
Yi-Mei Huang ◽  
Tse-Ying Chen ◽  
Deng-Gao Chen ◽  
Hsuan-Chi Liang ◽  
Cheng-Ham Wu ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Delayed Fluorescence ◽  
Triplet Energy ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Triplet Energy Transfer ◽  
Triplet Lifetime ◽  
Triplet Excitons

35Cbz4BzCN, a novel universal host with long triplet lifetime, has been developed. The triplet excitons in 35Cbz4BzCN can be effectively harvested by phosphorescence and thermally activated delayed fluorescence emitters. In...

Thermally activated delayed fluorescence blue dopants and hosts: from the design strategy to organic light-emitting diode applications

2016 ◽  
Vol 4 (48) ◽  
pp. 11355-11381 ◽  
Author(s):  
Mallesham Godumala ◽  
Suna Choi ◽  
Min Ju Cho ◽  
Dong Hoon Choi
Keyword(s):  
Light Emitting Diode ◽  
Design Strategy ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Color Coordinates ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Organic Light

Thermally activated delayed fluorescence materials exhibited outstanding external quantum efficiencies in OLEDs along with good CIE color coordinates and improved device stabilities. Hence these are most promising for commercialization of OLEDs.

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