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September 10, 2025Light Science & ApplicationsOpen Access

Time-dependent physical unclonable functions by long-lived triplet excitons in carbon dots

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Authors

YHYanwei HuQCQing CaoSSShiyu Song

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Overview

Demonstration reveals time-dependent PUFs with carbon dots, suggesting enhanced security features against attacks.

Key Points

  • Time-dependent physical unclonable functions were developed using long-lived triplet excitons in carbon dots.
  • These TD-PUFs evolve, yielding multiple distinct PUFs over time, and increasing security complexity.
  • A pixel matrix function was created to analyze the dynamic behavior of the time-evolving PUFs.
  • The innovative approach overcomes spatial limitations, making the PUF labels harder to crack.

Cite This Study

Hu et al. (2025) studied this question.

synapsesocial.com/papers/68c1c9f454b1d3bfb60f3d2ehttps://doi.org/10.1038/s41377-025-01940-9
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Also Consider

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  1. 1Time-Dependent Physical Unclonable Functions Driven by Long-Lived Triplet Excitons2024
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  4. 4Optical physical unclonable functions based on Förster resonant energy transfer in multi-color quantum dots2025
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