ArticleChemical science2023
Thermally activated delayed fluorescence with dual-emission and pressure-induced bidirectional shifting: cooperative effects of intramolecular and intermolecular energy transfer.
Article in Chemical science, 2023. 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.
- Pressure-Activated and Retained Blue Emission in Melamine Through Hydrogen-Bond and Packing Regulation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Boosting Red Room-Temperature Phosphorescence by Host-Guest Confinement: Acrylonitrile Derivatives in PMMA Toward Long-Lived Afterglow and Anti-Counterfeiting.Luminescence : the journal of biological and chemical luminescence · 2026Article
- Molecularly Engineered Dual-Emission Pathways with Monomer-Excimer Interplay for Single-Component Blue and White Organic Light-Emitting Diodes.ACS applied optical materials · 2026Article
- Distinct mechanochromic and piezochromic behaviors of thermally activated delayed fluorescence 4CzTPN crystal.Scientific reports · 2025Article
- Pressure induced emission enhancement (PIEE) in solid-state 2,3,4,5-tetraphenylthiophene: a QM/MM study.RSC advances · 2024Article
- A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system.Nature communications · 2024Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Different from the conventional piezochromic materials with a mono-redshift of single emission, our well-designed molecule demonstrates a sensitive turn-on and color-tunable piezochromic luminescence in response to the hydrostatic pressure. The molecule PXZ-W-SOF possesses dual-emission and pressure-induced bidirectional shifting characteristics. On the basis of in-depth experimental studies, on one hand, it is confirmed that the origin of the dual-emission behavior is the intramolecular charge transfer, namely thermally activated delayed fluorescence (TADF), and the intermolecular excimer; on the other hand, the emission of the excimer exhibits three-step variations with increasing pressure, which is mainly attributed to the molecular structure and its crystal packing state. The remarkable color change of PXZ-W-SOF from sky-blue to green to deep-blue during the whole process of boosting and releasing pressure is a result of intramolecular and intermolecular energy-transfer interactions. The PXZ-W-SOF molecular model is an extremely rare example of highly sensitive fluorescence tuning driven by TADF and excimer conversion under mechanical stimulation, thus providing a novel mechanism for the field of piezochromism. The unique molecular design also offers a new idea for rare deep-blue and ultraviolet TADF materials.
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Registered trials
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