Prediction and Design of Efficient Exciplex Emitters for High-Efficiency, Thermally Activated Delayed-Fluorescence Organic Light-Emitting Diodes

High‐efficiency, thermally activated delayed‐fluorescence organic light‐emitting diodes based on exciplex emitters are demonstrated. The best device, based on a TAPC:DPTPCz emitter, shows a high external quantum efficiency of 15.4%. Strategies for predicting and designing efficient exciplex emitters...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-04, Vol.27 (14), p.2378-2383
Main Authors: Liu, Xiao-Ke, Chen, Zhan, Zheng, Cai-Jun, Liu, Chuan-Lin, Lee, Chun-Sing, Li, Fan, Ou, Xue-Mei, Zhang, Xiao-Hong
Format: Article
Language:English
Subjects:
Activated
charge transfer
delayed fluorescence
Devices
Displays
Emitters
exciplex
Illumination
Lighting
Organic light-emitting diodes
Quantum efficiency
Strategy
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Summary:High‐efficiency, thermally activated delayed‐fluorescence organic light‐emitting diodes based on exciplex emitters are demonstrated. The best device, based on a TAPC:DPTPCz emitter, shows a high external quantum efficiency of 15.4%. Strategies for predicting and designing efficient exciplex emitters are also provided. This approach allow prediction and design of efficient exciplex emitters for achieving high‐efficiency organic light‐emitting diodes, for future use in displays and lighting applications.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201405062