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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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UV-Curing-Enhanced Organic Long-Persistent Luminescence Materials.

Yimeng Liang1, Man Liu1, Tiantian Wang1

  • 1Tianjin Key Laboratory of Molecular Optoelectronic Science (TJ-MOS), Key Laboratory of Organic Integrated Circuits of Ministry of Education, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.

Advanced Materials (Deerfield Beach, Fla.)
|July 17, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a simple UV curing strategy to enhance amorphous organic long-persistent luminescence materials (OLPLMs). This method creates a rigid environment, boosting luminescence for applications like anti-counterfeiting.

Keywords:
UV curinganti-counterfeitingnondestructive detectionorganic long-persistent luminescenceroom-temperature phosphorescence

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Photophysics

Background:

  • Amorphous organic long-persistent luminescence materials (OLPLMs) offer advantages in solution processing and large-area fabrication.
  • The luminescent properties of OLPLMs are highly sensitive to environmental rigidity.
  • Effective strategies for constructing rigid environments in amorphous OLPLMs to enhance long-persistent luminescence (LPL) are limited.

Purpose of the Study:

  • To propose a universal and effective strategy for enhancing the LPL performance of amorphous OLPLMs.
  • To investigate the role of a UV-curing-induced rigid environment on host-guest interactions and LPL properties.
  • To demonstrate a facile method for fabricating high-performance amorphous OLPLMs.

Main Methods:

  • Development of a universal strategy utilizing UV curing to construct a rigid environment in organic host-guest doping systems.
  • Fabrication of amorphous OLPLMs via solution processing followed by UV curing.
  • Characterization of the luminescent properties and structural changes induced by UV curing.

Main Results:

  • UV curing successfully created a rigid environment, significantly enhancing the LPL performance of amorphous OLPLMs.
  • The rigid environment promoted host-guest interactions, leading to highly efficient LPL.
  • The developed strategy is solution-processable, enables large-area fabrication, and is easy to implement.

Conclusions:

  • A facile UV curing strategy provides an effective means to enhance LPL in amorphous OLPLMs by controlling environmental rigidity.
  • This approach offers a promising pathway for developing advanced amorphous OLPLMs with broad applications.
  • Potential applications include anti-counterfeiting, nondestructive detection, and pattern marking.