articleNatureMar 27, 2024HYBRID OA

A figure of merit for efficiency roll-off in TADF-based organic LEDs

SDStefan DiesingLZLe ZhangEZEli Zysman‐ColmanIDIfor D. W. Samuel

University of St Andrews

PubMed
Indexed incrossrefpubmed

Abstract

Abstract Organic light-emitting diodes (OLEDs) are a revolutionary light-emitting display technology that has been successfully commercialized in mobile phones and televisions 1,2 . The injected charges form both singlet and triplet excitons, and for high efficiency it is important to enable triplets as well as singlets to emit light. At present, materials that harvest triplets by thermally activated delayed fluorescence (TADF) are a very active field of research as an alternative to phosphorescent emitters that usually use heavy metal atoms 3,4 . Although excellent progress has been made, in most TADF OLEDs there is a severe decrease of efficiency as the drive current is increased, known as efficiency…

Citation impact

143
total citations
FWCI
27.33
Percentile
100%
References
161
Citations per year

Authors

4

Topics & keywords

Topics
Keywords
  • OLED
  • Intersystem crossing
  • Optoelectronics
  • Figure of merit
  • Phosphorescence
  • Singlet state
  • Materials science
  • Diode
UN Sustainable Development Goals
  • Affordable and clean energy
No related works found for this paper.

Funding