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Tunable Afterglow System

Linna Guo1, Yishuo Sun1, Xianlong Su1

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

ACS Applied Materials & Interfaces
|June 8, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel method for controllable afterglow luminescence using pyridones as singlet oxygen (1O2) storage reagents (OSRs). This breakthrough allows tunable luminescence for applications like information security.

Keywords:
afterglow luminescencecontrollable afterglow processinformation encryptionphotoenergy storage unitssinglet oxygen capture units

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Area of Science:

  • Materials Science
  • Photochemistry
  • Optics

Background:

  • Afterglow luminescence is significant for optical properties but challenging to control due to rapid photophysical changes.
  • Existing methods for persistent luminescence lack precise control over the afterglow process.

Purpose of the Study:

  • To develop a new strategy for controllable afterglow luminescence.
  • To introduce singlet oxygen (1O2) storage reagents (OSRs) for tunable luminescence.
  • To explore applications in information security.

Main Methods:

  • Introduction of pyridones as singlet oxygen (1O2) storage reagents (OSRs).
  • Storage of 1O2 in covalent bonds at low temperatures and release upon heating.
  • Tuning of afterglow properties (intensity, decay rate) via temperature and OSR structure.

Main Results:

  • Demonstrated controllable afterglow luminescence by regulating temperature and OSR structure.
  • Achieved flexible tuning of afterglow intensity and decay rates.
  • Successfully devised a new strategy for information security based on controllable luminescence.

Conclusions:

  • Pyridone-based OSRs offer a novel route to controllable afterglow luminescence.
  • The developed system provides tunable optical properties with potential in information security and beyond.