ArticleNature materials2025
Pure-blue single-layer organic light-emitting diodes based on trap-free hyperfluorescence.
Article in Nature materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Hybridized through-bond/through-space charge transfer enables efficient blue emitters with the Rec. 2020 color gamut.Chemical science · 2026Article
- Heptazine-Assisted Multi-Resonance TADF Emitters With Fast Reverse Intersystem Crossing for Efficient Solution-Processed OLEDs.Advanced materials (Deerfield Beach, Fla.) · 2026Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Blue organic light-emitting diodes based on thermally activated delayed fluorescence suffer from low stability and broad emission. Hyperfluorescence-in which the excited state created on the thermally activated delayed fluorescence emitter is transferred to a fluorescent terminal emitter with a narrow emission spectrum-is promising towards improving colour purity and stability. However, direct charge trapping on the smaller-gap terminal emitter may lead to direct emissive losses, inhibited charge transport and charge imbalance. Here we demonstrate single-layer pure-blue hyperfluorescent organic light-emitting diodes that are not compromised by charge trapping on the terminal emitter. We reveal that the energetic disorder of the thermally activated delayed fluorescence sensitizer allows for the presence of a terminal emitter with a smaller energy gap, without affecting charge transport. Consequently, the stability benefits of single-layer organic light-emitting diodes can be combined with trap-free hyperfluorescence, resulting in pure-blue emission, a simple device structure, high quantum and power efficiencies, and state-of-the-art operational stability.
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Registered trials
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