We studied how ether-linked benzophenone and dibenzofuran/dibenzothiophene-functionalized benzophenone as auxiliary groups in carbazole-phthalonitrile conjugates influence aggregation-enhanced thermally activated delayed fluorescence (AE-TADF). CDBFPN and CDBTPN exhibited AE-TADF due to their unique butterfly-shaped geometries. In contrast, CBPN faces aggregation-caused quenching, underscoring the critical role of these functionalized groups in boosting the blue TADF properties.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d5cc00015g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Regulation of aggregation-enhanced thermally activated delayed fluorescence in butterfly-shaped donor-acceptor conjugates.
Chem Commun (Camb)
March 2025
Advanced Photofunctional Materials Laboratory, Department of Chemistry, Shiv Nadar Institution of Eminence, Delhi NCR, NH-91, Tehsil Dadri, Gautam Buddha Nagar, Greater Noida 201314, Uttar Pradesh, India.
We studied how ether-linked benzophenone and dibenzofuran/dibenzothiophene-functionalized benzophenone as auxiliary groups in carbazole-phthalonitrile conjugates influence aggregation-enhanced thermally activated delayed fluorescence (AE-TADF). CDBFPN and CDBTPN exhibited AE-TADF due to their unique butterfly-shaped geometries. In contrast, CBPN faces aggregation-caused quenching, underscoring the critical role of these functionalized groups in boosting the blue TADF properties.
View Article and Find Full Text PDFPyridinium Rotor Strategy toward a Robust Photothermal Agent for STING Activation and Multimodal Image-Guided Immunotherapy for Triple-Negative Breast Cancer.
J Am Chem Soc
March 2025
Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science, and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China.
The immunosuppressive tumor microenvironment in triple-negative breast cancer could hinder the response to thorough immunotherapy and diminish the antitumor efficacy. Although the STING pathway emerges as a promising target to remedy defects, uncertain drug delivery might lead to off-target inflammatory reactions. Here, we manifest a novel phototheranostic agent with an aggregation-induced emission property that guided the pharmacological activation of a STING agonist for photothermal immunotherapy to create an immunologically "hot" tumor.
View Article and Find Full Text PDFDesign of Thermally Activated Delayed Fluorescence Materials: Transition from Carbonyl to Amide-Based Acceptor.
Angew Chem Int Ed Engl
October 2024
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
Benzophenone skeletons containing a carbonyl unit (O=C) have been widely used as electron acceptors in the thermally activated delayed fluorescence (TADF) materials. Herein, we present a novel molecular design concept for TADF materials by transitioning from a carbonyl to an amide (O=C-N) skeleton as the acceptor. The amide unit, compared to its carbonyl counterpart, offers a more stable electronic configuration.
View Article and Find Full Text PDFRemarkable Second Harmonic Generation Response in (CHNO)(CHSO): Unraveling the Role of Hydrogen Bond in Thermal Driven Nonlinear Optical Switch.
Angew Chem Int Ed Engl
September 2024
Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
Heat-activated second harmonic generation (SHG) switching materials are gaining interest for their ability to switch between SHG on and off states, offering potential in optoelectronic applications. The novel nonlinear optical (NLO) switch, (CHNO)(CHSO) (4-hydroxypyridinium methylsulfonate, 4HPMS), is a near-room-temperature thermal driven material with a strong SHG response (3.3 × KDP), making it one of the most potent heat-stimulated NLO switches.
View Article and Find Full Text PDFAggregation Enhanced Thermally Activated Delayed Fluorescence through Spin-Orbit Coupling Regulation.
Angew Chem Int Ed Engl
July 2024
Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China.
Integrating aggregation-induced emission (AIE) into thermally activated delayed fluorescence (TADF) emitters holds great promise for the advancement of highly efficient organic light emitting diodes (OLEDs). Despite recent advancements, a thorough comprehension of the underlying mechanisms remains imperative for the practical application of such materials. In this work, we introduce a novel approach aimed at modulating the TADF process by manipulating dynamic processes in excited states through aggregation effect.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!