Recent Progress of Singlet‐Exciton‐Harvesting Fluorescent Organic Light‐Emitting Diodes by Energy Transfer Processes

2019 ◽  
Vol 31 (34) ◽  
pp. 1803714 ◽  
Author(s):  
Sung Yong Byeon ◽  
Dong Ryun Lee ◽  
Kyoung Soo Yook ◽  
Jun Yeob Lee
Keyword(s):  
Energy Transfer ◽  
Recent Progress ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Singlet Exciton ◽  
Transfer Processes ◽  
Organic Light

Energy transfer processes in hyperfluorescent organic light-emitting diodes

2022 ◽  
Author(s):  
Eunkyung Cho ◽  
Minki Hong ◽  
Yu Seok Yang ◽  
Yong Joo Cho ◽  
Veaceslav Coropceanu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Host Matrix ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Transfer Processes ◽  
Organic Light

Hyperfluorescent organic light-emitting diodes (OLEDs) are based on a combination of molecules displaying thermally activated delayed fluorescence (TADF) and of fluorescent emitters embedded into a host matrix; excitons formed on...

A high fluorescence rate is key for stable blue organic light-emitting diodes

2018 ◽  
Vol 6 (29) ◽  
pp. 7728-7733 ◽  
Author(s):  
Zhusen Liu ◽  
Fangyi Cao ◽  
Taiju Tsuboi ◽  
Yan Yue ◽  
Chao Deng ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Critical Factor ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Singlet Exciton ◽  
Thermally Activated ◽  
Organic Light ◽  
Exciton Annihilation ◽  
High Fluorescence

Singlet–singlet exciton annihilation (SSA) is found to be a critical factor for the decomposition of blue thermally activated delayed fluorescence (TADF) emitters in organic light-emitting diodes (OLEDs).

Exciton energy transfer and bi-exciton annihilation in the emitting layers of thermally activated delayed fluorescence-based OLEDs

2021 ◽  
Author(s):  
Hyunchul Kang ◽  
Han-Jin Ahn ◽  
Gyeong-Woo Kim ◽  
Ji-Eun Jeong ◽  
Han Young Woo ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Exciton Energy ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
Exciton Annihilation

Understanding the exciton energy transfer and bi-exciton annihilation processes in the emitting layers (EMLs) of thermally activated delayed fluorescence (TADF)-based organic light-emitting diodes (OLEDs) is essential for improving their internal...

Degradation of fluorescent organic light emitting diodes caused by quenching of singlet and triplet excitons

2020 ◽  
Vol 8 (42) ◽  
pp. 14873-14879
Author(s):  
Duy Cong Le ◽  
Duong Dai Nguyen ◽  
Savanna Lloyd ◽  
Toshi-kazu Suzuki ◽  
Hideyuki Murata
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Singlet Exciton ◽  
Organic Light ◽  
Positively Charged ◽  
Triplet Excitons ◽  
Triplet Triplet Annihilation

The initial luminescence loss of fluorescent OLEDs utilizing triplet–triplet annihilation is not only caused by quenching of singlet exciton with neutral quenchers but also by that of triplet excitons with positively charged quenchers.

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