ArticleChemical science2024
Fast, efficient, narrowband room-temperature phosphorescence from metal-free 1,2-diketones: rational design and the mechanism.
Article in Chemical science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Descriptor-Guided Design of High-Efficiency Narrowband Phosphorescent Probes for Bioimaging.JACS Au · 2026Article
- Vapor-induced miscibility switching and optical response in a functional molecular liquid-pillar[5]arene system.Chemical science · 2026Article
- Color-Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles.Angewandte Chemie (International ed. in English) · 2026Review
- Reversible color switching of bright phosphorescence in purely organic materials for advanced data encryption.Nature communications · 2026Article
- Coordination-Locked Engineering to Achieve Narrowband Room Temperature Phosphorescence in Non-Rare Earth Metal-Organic Frameworks.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Symmetry Breaking and Hydrogen Bonding in Phthalimide Compounds Enable Efficient Room-Temperature Circularly Polarized Phosphorescence in Solution.Angewandte Chemie (International ed. in English) · 2025Article
- Dendronized Encapsulation with Hierarchical Rigidification Enabling Robust Solution Room-Temperature Phosphorescence, Efficient Electroluminescence and Ultralong Afterglow.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Fast and efficient room-temperature phosphorescence from metal-free organic molecular liquids.Chemical science · 2025Article
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Authors and funding
11 authors.
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Abstract
We report metal-free organic 1,2-diketones that exhibit fast and highly efficient room-temperature phosphorescence (RTP) with high colour purity under various conditions, including solutions. RTP quantum yields reached 38.2% in solution under Ar, 54% in a polymer matrix in air, and 50% in crystalline solids in air. Moreover, the narrowband RTP consistently dominated the steady-state emission, regardless of the molecular environment. Detailed mechanistic studies using ultrafast spectroscopy, single-crystal X-ray structure analysis, and theoretical calculations revealed picosecond intersystem crossing (ISC) followed by RTP from a planar conformation. Notably, the phosphorescence rate constant
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