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Related Concept Videos

Photoluminescence: Applications01:14

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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...
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Light-Responsive Luminescent Materials for Information Encryption Against Burst Force Attack.

Qianwen Zhou1, Xiaochen Qiu1, Xianlong Su1

  • 1Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China.

Small (Weinheim an Der Bergstrasse, Germany)
|April 19, 2021
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Summary

This study presents novel light-responsive luminescent materials for secure optical encryption. These materials offer high security and multiplexed encoding capabilities, protecting information against sophisticated attacks.

Keywords:
afterglow luminescencecolor manipulationinformation encryptionlight-responsive luminescent materialsperovskite nanocrystals

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Area of Science:

  • Materials Science
  • Information Security
  • Optics

Background:

  • Optical encryption is crucial for information security, demanding high security and ease of operation.
  • Stimuli-responsive luminescent materials offer smart properties ideal for advanced optical encryption.

Purpose of the Study:

  • To develop light-responsive multicolor luminescent materials for high-security information encryption.
  • To enable multiplexed encoding using stimulus light and emission color as distinct dimensions.
  • To achieve selective information reading and erasing via controllable material consumption.

Main Methods:

  • Fabrication of luminescent materials by combining sensitizers, consumption units, and perovskite nanocrystal emitters.
  • Selection of different sensitizers for varied stimulus light responses.
  • Adjustment of perovskite nanocrystal composition for multicolor emission tuning.
  • Manipulation of consumption unit concentration to control information erasure.

Main Results:

  • Development of multicolor light-responsive luminescent materials for optical encryption.
  • Demonstration of multiplexed encoding using stimulus light and emission color.
  • Achieved selective and simultaneous reading/erasing of encoded information by varying stimulus light.
  • Encryption method exhibits high resistance to brute-force attacks, ensuring robust information protection.

Conclusions:

  • The developed materials provide a novel platform for high-security optical information encryption.
  • Multiplexed encoding dimensions (stimulus light and emission color) enhance encryption capacity and complexity.
  • Controllable material consumption enables selective data management, improving security and usability.