ArticleChemical science2024
NIR-II photothermal conversion and imaging based on a cocrystal containing twisted components.
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 7 papers.
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Who cites it
7 citing papers in PubMed.
- Dual-responsive PDA-HP hydrogel enables mitochondria-targeted mild photothermal therapy for spinal cord repair.Materials today. Bio · 2026Article
- Near-Infrared Cocrystal Nanofluorophore with Enhanced Two-Photon Absorption Cross Sections.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- High-performance organic semiconductor near-infrared and shortwave-infrared photodetectors: a materials and device roadmap.Chemical science · 2025Review
- An acceptor motor-driven electronic donor-acceptor supramolecular scaffold towards imaging-guided tumor therapy.Chemical science · 2025Article
- Büchner-type ring expansion of aromatic main-group biradicaloids toward phosphorus radical-derived NIR-II photothermal materials.Chemical science · 2025Article
- Ternary Inclusion Co-Crystals for Efficient Photothermal Conversion and Solar-Driven Water Evaporation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Silvery fullerene in AgNational science review · 2024Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
On account of the scarcity of molecules with a satisfactory second near-infrared (NIR-II) response, the design of high-performance organic NIR photothermal materials has been limited. Herein, we investigate a cocrystal incorporating tetrathiafulvalene (TTF) and tetrachloroperylene dianhydride (TCPDA) components. A stable radical was generated through charge transfer from TTF to TCPDA, which exhibits strong and wide-ranging NIR-II absorption. The metal-free TTF-TCPDA cocrystal in this research shows high photothermal conversion capability under 1064 nm laser irradiation and clear photothermal imaging. The remarkable conversion ability-which is a result of twisted components in the cocrystal-has been demonstrated by analyses of single crystal X-ray diffraction, photoluminescence and femtosecond transient absorption spectroscopy as well as theoretical calculations. We have discovered that space charge separation and the ordered lattice in the TTF-TCPDA cocrystal suppress the radiative decay, while simultaneously strong intermolecular charge transfer enhances the non-radiative decay. The twisted TCPDA component induces rapid charge recombination, while the distorted configuration in TTF-TCPDA favors an internal non-radiative pathway. This research has provided a comprehensive understanding of the photothermal conversion mechanism and opened a new way for the design of advanced organic NIR-II photothermal materials.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.