ArticleNanomaterials (Basel, Switzerland)2022
Carbon Dots with an Emission in the Near Infrared Produced from Organic Dyes in Porous Silica Microsphere Templates.
Article in Nanomaterials (Basel, Switzerland), 2022. 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, 45 citations in OpenAlex.
- A copper-mediated Fenton-like dual-mode optical sensor for sensitive determination of acetylcholinesterase activity in biological fluids.RSC advances · 2026Article
- Nitrogen-doped carbon dot-based dual-emission ratiometric probe for smartphone-assisted ultrasensitive detection of moxifloxacin.Scientific reports · 2026Article
- Engineering NIR-II carbon dots through aniline extension with graphene and nitrogen enrichment for hepatobiliary theranostics.Nature communications · 2026Article
- The novel alumina/CQDs nanocomposites for modifying optical and structural properties of alumina nanostructure.Scientific reports · 2026Article
- Dual-emission nitrogen-doped carbon dots for ratiometric and smartphone-based detection of levofloxacin.RSC advances · 2025Article
- Editorial for Special Issue "Luminescent Colloidal Nanocrystals".Nanomaterials (Basel, Switzerland) · 2023Article
- Review on Fluorescent Carbon/Graphene Quantum Dots: Promising Material for Energy Storage and Next-Generation Light-Emitting Diodes.Materials (Basel, Switzerland) · 2022Review
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Authors and funding
14 authors at 5 institutions in 4 countries.
Funding
Abstract
Carbon dots (CDs) with an emission in the near infrared spectral region are attractive due to their promising applications in bio-related areas, while their fabrication still remains a challenging task. Herein, we developed a template-assisted method using porous silica microspheres for the formation of CDs with optical transitions in the near infrared. Two organic dyes, Rhodamine 6G and IR1061 with emission in the yellow and near infrared spectral regions, respectively, were used as precursors for CDs. Correlation of morphology and chemical composition with optical properties of obtained CDs revealed the origin of their emission, which is related to the CDs' core optical transitions and dye-derivatives within CDs. By varying annealing temperature, different kinds of optical centers as derivatives of organic dyes are formed in the microsphere's pores. The template-assisted method allows us to synthesize CDs with an emission peaked at 1085 nm and photoluminescence quantum yield of 0.2%, which is the highest value reported so far for CDs emitting at wavelengths longer than 1050 nm.
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