ArticleNature communications2019
Investigating underlying mechanism in spectral narrowing phenomenon induced by microcavity in organic light emitting diodes.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Porphyrin-nitrogen carbon dot composites for high-performance organic light-emitting diodes.Scientific reports · 2026Article
- Giant magneto-photoluminescence at ultralow field in organic microcrystal arrays for on-chip optical magnetometer.Nature communications · 2024Article
- Reconfigurable Micro/Nano-Optical Devices Based on Phase Transitions: From Materials, Mechanisms to Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Review
- Dual-color emissive OLED with orthogonal polarization modes.Nature communications · 2024Article
- Spin-orbital coupling and slow phonon effects enabled persistent photoluminescence in organic crystal under isomer doping.Nature communications · 2021Article
- Top-emitting thermally activated delayed fluorescence organic light-emitting devices with weak light-matter coupling.Light, science & applications · 2021Article
Corrections and comments
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Authors and funding
5 authors.
Funding
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Abstract
This paper reports our experimental studies on the underlying mechanism responsible for electroluminescence spectral narrowing phenomenon in the cavity-based organic light-emitting diodes. It is found that the microcavity generates an emerging phenomenon: a magneto-photoluminescence signal in Poly(9,9-dioctylfluorene-alt-benzothiadiazole) polymer under photoexcitation, which is completely absent when microcavity is not used. This provides an evidence that microcavity leads to the formation of spatially extended states, functioning as the intermediate states prior to the formation of Frenkel excitons in organic materials. This is confirmed by the magneto-electroluminescence solely observed from the cavity-based light-emitting diodes under electrical injection. Furthermore, the narrowed electroluminescence output shows a linear polarization, concurrently occurred with magneto-electroluminescence. This indicates that the spatially extended sates become aligned towards forming coherent light-emitting excitons within the microcavity through optical resonance. Clearly, the spatially extended states present the necessary condition to realize electroluminescence spectral narrowing phenomenon towards lasing actions in cavity-based organic light-emitting diodes.
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Registered trials
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