Highly Efficient Orange and Red Phosphorescent Organic Light‐Emitting Diodes with Low Roll‐Off of Efficiency using a Novel Thermally Activated Delayed Fluorescence Material as Host
- 28 May 2015
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 27 (27), 4041-4047
- https://doi.org/10.1002/adma.201501373
Abstract
MTXSFCz with thermally activated delayed fluorescence is synthesized. Orange and red phosphorescent organic light-emitting diodes (PHOLEDs) with low efficiency roll-off exhibit external quantum efficiencies (EQE) up to 11.8% and 15.6%. The efficient upconversion from triplet to singlet of the host reduces the triplet density and thus affords a low efficiency roll-off of PHOLEDs.Keywords
Funding Information
- “Hundred Talents Program” of the Chinese Academy of Sciences
- National Natural Science Foundation of China (61420106002, 61178061, 51373189, 61227008)
- National Basic Research Program of China (973) (2014CB932600)
- Start-Up Fund of the Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
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