ArticleNano-micro letters2021
Green and Near-Infrared Dual-Mode Afterglow of Carbon Dots and Their Applications for Confidential Information Readout.
Article in Nano-micro letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 135 citations in OpenAlex.
- Minute-scale red phosphorescence in carbon nanodots.Nature communications · 2026Article
- Zinc-Doping Trap Engineering and FRET Synergy Enable Multicolor Room-Temperature Phosphorescence in Rice-Derived Carbon Dots Confined in Amorphous Alumina for Advanced Encryption.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Triple Matrix Confinement-Induced Ultrabright Afterglow From Carbon Dots With Multivariate Responsive Afterglow Colors for Advanced Dynamic Information Encryption.Angewandte Chemie (International ed. in English) · 2026Article
- Scalable synthesis of phosphorescent SiONature communications · 2025Article
- High-yield upcycling of feather wastes into solid-state ultra-long phosphorescence carbon dots for advanced anticounterfeiting and information encryption.Exploration (Beijing, China) · 2024Article
- Evolution and fabrication of carbon dot-based room temperature phosphorescence materials.Chemical science · 2023Review
- Carbon dots-based delayed fluorescent materials: Mechanism, structural regulation and application.iScience · 2022Review
- Ultralong-Lived Up-Conversional Room-Temperature Afterglow Materials with a Polyvinyl Alcohol Substrate.Polymers · 2022Article
- Electron-phonon coupling-assisted universal red luminescence of o-phenylenediamine-based carbon dots.Light, science & applications · 2022Article
- Preparation, characterization and cell labelling of strong pH-controlled bicolor fluorescence carbonized polymer dots.RSC advances · 2022Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Near-infrared (NIR), particularly NIR-containing dual-/multi-mode afterglow, is very attractive in many fields of application, but it is still a great challenge to achieve such property of materials. Herein, we report a facile method to prepare green and NIR dual-mode afterglow of carbon dots (CDs) through in situ embedding o-CDs (being prepared from o-phenylenediamine) into cyanuric acid (CA) matrix (named o-CDs@CA). Further studies reveal that the green and NIR afterglows of o-CDs@CA originate from thermal activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) of o-CDs, respectively. In addition, the formation of covalent bonds between o-CDs and CA, and the presence of multiple fixation and rigid effects to the triplet states of o-CDs are confirmed to be critical for activating the observed dual-mode afterglow. Due to the shorter lifetime and insensitiveness to human vision of the NIR RTP of o-CDs@CA, it is completely covered by the green TADF during directly observing. The NIR RTP signal, however, can be readily captured if an optical filter (cut-off wavelength of 600 nm) being used. By utilizing these unique features, the applications of o-CDs@CA in anti-counterfeiting and information encryption have been demonstrated with great confidentiality. Finally, the as-developed method was confirmed to be applicable to many other kinds of CDs for achieving or enhancing their afterglow performances.
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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.