Ultra-low power-consumption OLEDs via phosphor-assisted thermally-activated-delayed-fluorescence-sensitized narrowband emission

Chen Yin, Yangyang Xin, Tianyu Huang, Qisheng Zhang, Lian Duan and Dongdong Zhang ()
Additional contact information
Chen Yin: Tsinghua University
Yangyang Xin: Tsinghua University
Tianyu Huang: Tsinghua University
Qisheng Zhang: Zhejiang University
Lian Duan: Tsinghua University
Dongdong Zhang: Tsinghua University

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract The further success of OLED beyond conventional low-luminance display applications has been hampered by the low power efficiency (PE) at high luminance. Here, we demonstrate the strategic implementation of an exceptionally high-PE, high-luminance OLED using a phosphor-assisted thermally-activated-delayed-fluorescence (TADF)-sensitized narrowband emission. On the basis of a TADF sensitizing-host possessing a fast reverse intersystem crossing, an anti-aggregation-caused-quenching character and a good bipolar charge-transporting ability, this design achieves not only a 100% exciton radiative consumption with decay times mainly in the sub-microsecond regime to mitigate exciton annihilations for nearly roll-off-free external quantum efficiency, but also narrowband emission with both small energetic loss during energy transfer and resistive loss with increasing luminance. Consequently, besides a maximum PE of 187.7 lm/W, an exceptionally high critical maximum luminance (where a PE of 100 lm/W is maintained) of over 110,000 cd/m2 is achieved for the proof-of-the-concept device, nearly one-of-magnitude higher than the previous record.

Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-55564-5 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-024-55564-5

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-55564-5

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().