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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

969
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
969

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Stimulus-Responsive Afterglow Carbon Dots from Internal Mechanism to Potential Application.

Chongye Xia1,2, Xingyu Gu1,2, Xingwang Zhu1,2

  • 1Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225009, China.

Nanomaterials (Basel, Switzerland)
|December 10, 2025
PubMed
Summary

Stimulus-responsive afterglow materials, particularly carbon dots (CDs), offer tunable luminescence for advanced applications. This review details their mechanisms, synthesis, and potential in sensing and information encryption.

Keywords:
afterglowcarbon dotsinformation encryptionsensingstimulus-responsive

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Photochemistry

Background:

  • Stimulus-responsive afterglow materials exhibit altered luminescence under external stimuli, with applications in anti-counterfeiting, displays, sensing, and bioimaging.
  • Carbon dots (CDs) are emerging afterglow materials known for photophysical stability, low toxicity, and tunable luminescence.
  • Recent advancements highlight the potential of stimulus-responsive afterglow CDs, necessitating a comprehensive review.

Purpose of the Study:

  • To systematically review recent progress in carbon dot (CD)-based afterglow materials.
  • To summarize luminescence mechanisms, synthesis strategies, and stimulus-responsive behaviors of CDs.
  • To discuss applications in sensing and information encryption, and outline future prospects.

Main Methods:

  • Literature review of recent advances in stimulus-responsive afterglow carbon dots.
  • Analysis of luminescence mechanisms and synthesis strategies for CDs.
  • Examination of response mechanisms and performance influences of various stimuli on afterglow CDs.

Main Results:

  • Carbon dots exhibit diverse stimulus-responsive afterglow behaviors influenced by material properties and external stimuli.
  • Specific response mechanisms and their impact on afterglow performance are detailed.
  • Potential applications in chemical sensing and information encryption are demonstrated.

Conclusions:

  • Stimulus-responsive afterglow CDs represent a promising class of materials with tunable properties.
  • Further research is needed to guide the rational design of next-generation CDs for enhanced performance.
  • These materials hold significant potential for future applications in advanced technologies.