Abstract

Thermally activated delayed fluorescence (TADF) white organic light-emitting diodes (WOLEDs) with simplified structures have great potential for daily lighting applications. However, the complicated energy and charge transfer processes between TADF emitters impede the development of single-layer white TADF systems. Here we demonstrate high-efficiency WOLEDs with single-emissive layers composed of blue and yellow TADF emitters with appropriate steric hindrances and energy gaps, which optimize the energy transfer from blue to yellow dopants for rational exciton allocation. As a consequence, the single-emissive-layer WOLEDs achieve the maximum external quantum efficiency beyond 20% and small roll-offs, which are among the best results of full-TADF WOLEDs.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Highly efficient phosphorescent organic light-emitting diodes based on single-layer structure

Ren Sheng, Asu Li, Ying Gao, Yu Duan, Yi Zhao, and Ping Chen
Opt. Lett. 44(7) 1722-1725 (2019)

High-performance solution-processed white organic light-emitting diodes based on silica-coated silver nanocubes

Lingling Deng, Jiaqi Yang, Nan Zhan, Tianyan Yu, Hongtao Yu, and Shufen Chen
Opt. Lett. 44(4) 983-986 (2019)

Solution-processed single-emitting-layer white organic light-emitting diodes based on small molecules with efficiency/CRI/color-stability trade-off

Qiang Fu, Jiangshan Chen, Hongmei Zhang, Changsheng Shi, and Dongge Ma
Opt. Express 21(9) 11078-11085 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription