ArticleAngewandte Chemie (International ed. in English)2022
Thermally Activated and Aggregation-Regulated Excitonic Coupling Enable Emissive High-Lying Triplet Excitons.
Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 51 citations in OpenAlex.
- Highly efficient dual-channel doublet emission in lanthanide cerium(III) complex.Light, science & applications · 2026Article
- Nature-Inspired Organic-Inorganic Hybridization Enables High-Temperature and Multicolor Organic Phosphorescence.Angewandte Chemie (International ed. in English) · 2026Article
- Host-Guest Doping Enables Room Temperature Phosphorescence from Triarylboranes.Angewandte Chemie (International ed. in English) · 2026Article
- Polymer matrix drives thermal stimulation-caused dynamic phosphorescence in dispersed chromophores.Nature communications · 2026Article
- Accurately adjusted phenothiazine conformations: reversible conformation transformation at room temperature and self-recoverable stimuli-responsive phosphorescence.Light, science & applications · 2025Article
- Thermal control over phosphorescence or thermally activated delayed fluorescence in a metal-organic framework.Chemical science · 2024Article
- A nine-ring fused terrylene diimide exhibits switching between red TADF and near-IR room temperature phosphorescence.Chemical science · 2024Article
- Urea-formaldehyde resin room temperature phosphorescent material with ultra-long afterglow and adjustable phosphorescence performance.Nature communications · 2024Article
- Room-Temperature Multiple Phosphorescence from Functionalized Corannulenes: Temperature Sensing and Afterglow Organic Light-Emitting Diode.Angewandte Chemie (International ed. in English) · 2023Article
- A functional unit combination strategy for enhancing red room-temperature phosphorescence.Chemical science · 2023Article
- Conjugation-Modulated Excitonic Coupling Brightens Multiple Triplet Excited States.Journal of the American Chemical Society · 2023Article
- Thermally Activated and Aggregation-Regulated Excitonic Coupling Enable Emissive High-Lying Triplet Excitons.Angewandte Chemie (International ed. in English) · 2022Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
Room-temperature phosphorescence (RTP) originating from higher-lying triplet excitons remains a rather rarely documented occurrence for purely organic molecular systems. Here, we report two naphthalene-based RTP luminophores whose phosphorescence emission is enabled by radiative decay of high-lying triplet excitons. In contrast, upon cooling the dominant phosphorescence originates from the lowest-lying triplet excited state, which is manifested by a red-shifted emission. Photophysical and theoretical studies reveal that the unusual RTP results from thermally activated excitonic coupling between different conformations of the compounds. Aggregation-regulated excitonic coupling is observed when increasing the doping concentration of the emitters in poly(methylmethacrylate) (PMMA). Further, the RTP quantum efficiency improves more than 80-fold in 1,3-bis(N-carbazolyl)benzene (mCP) compared to that in PMMA. This design principle offers important insight into triplet excited state dynamics and has been exploited in afterglow-indicating temperature sensing.
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