Combined Inter‐ and Intramolecular Charge‐Transfer Processes for Highly Efficient Fluorescent Organic Light‐Emitting Diodes with Reduced Triplet Exciton Quenching
Source abstract
Abstract
Inter‐ and intramolecular charge‐transfer processes are combined using an exciplex‐forming host and a thermally activated delayed fluorescent dopant, for fabricating efficient fluorescent organic light‐emitting diodes along with the reduced efficiency roll‐off at high current densities. Extra conversion on the host from triplet exciplexes to singlet exciplexes followed by energy transfer to the dopant reduces population of triplet excitons on dopant molecules, thereby reducing the triplet exciton annihilations at high current densities.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · Organic Electronics and Photovoltaics · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering Seoul National University Seoul 151‐742 South Korea
Institute for Chemical Research Kyoto University Uji Kyoto 611‐0011 Japan
Center for Organic Photonics and Electronics Research (OPERA) Kyushu University 744 Motooka Nishi Fukuoka 819‐0395 Japan
Research Institute of Advanced Materials (RIAM) Seoul National University Seoul 151‐742 South Korea
Funding
National Research Foundation of Korea
References (24)
Show source-provided references
1. 10.1038/nature1168710.1038/nature11687 ↗
2. 10.1002/adma.20140253210.1002/adma.201402532 ↗
3. 10.1038/nphoton.2012.3110.1038/nphoton.2012.31 ↗
4. 10.1063/1.480271610.1063/1.4802716 ↗
5. 10.1021/acs.chemmater.6b0047810.1021/acs.chemmater.6b00478 ↗
6. 10.1002/adma.20140140710.1002/adma.201401407 ↗
7. 10.1038/ncomms947610.1038/ncomms9476 ↗
8. 10.1021/acsami.5b0122010.1021/acsami.5b01220 ↗
9. 10.1063/1.495416310.1063/1.4954163 ↗
10. 10.1002/adma.20160167510.1002/adma.201601675 ↗
11. 10.1002/adma.20150378210.1002/adma.201503782 ↗
12. 10.1103/PhysRevB.62.1096710.1103/PhysRevB.62.10967 ↗
13. 10.1103/PhysRevB.75.12532810.1103/PhysRevB.75.125328 ↗
14. 10.1002/adma.20130160310.1002/adma.201301603 ↗
15. 10.1016/j.orgel.2013.07.01010.1016/j.orgel.2013.07.010 ↗
16. 10.1016/j.cplett.2015.11.04210.1016/j.cplett.2015.11.042 ↗
17. 10.1039/C6TC01353H10.1039/C6TC01353H ↗
18. Lee J.‐H. · Adv. Funct. Mater. · 2014 · 24 · 2681
19. 10.1002/adfm.20130054710.1002/adfm.201300547 ↗
20. 10.1364/OE.23.00A27910.1364/OE.23.00A279 ↗
21. 10.1002/adma.20130573310.1002/adma.201305733 ↗
22. 10.1039/c2cc36237f10.1039/c2cc36237f ↗
23. 10.1103/PhysRevB.77.23521510.1103/PhysRevB.77.235215 ↗
24. 10.1103/PhysRevApplied.3.02400810.1103/PhysRevApplied.3.024008 ↗