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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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Afterglow Phosphor Goes Transparent.

Xiangzhou Zhang1, Xiuling Li1, Yeqi Liu1

  • 1Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, People's Republic of China.

The Journal of Physical Chemistry Letters
|October 31, 2023
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Summary
This summary is machine-generated.

Transparent afterglow phosphors offer improved light output for advanced applications. This review explores methods to reduce scattering, enhancing transparency in materials like crystals, organics, and glass.

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Area of Science:

  • Materials Science
  • Optics
  • Solid State Physics

Background:

  • Traditional afterglow phosphors are opaque due to light scattering.
  • Transparent phosphors are desirable for applications like volumetric displays and 3D optical encryption.
  • Reducing interfaces and engineering refractive index can overcome scattering.

Purpose of the Study:

  • To review advancements in transparent afterglow phosphors.
  • To analyze strategies for mitigating light scattering in phosphorescent materials.
  • To discuss future prospects for transparent afterglow phosphor technologies.

Main Methods:

  • Systematic review of literature on transparent afterglow phosphors.
  • Analysis of Rayleigh scattering theory to understand nontransparency.
  • Categorization of transparent phosphors into single crystals, organics, glass, and nanocomposites.

Main Results:

  • Identified reduction of interfaces and refractive index engineering as key to transparency.
  • Reviewed four material systems: single crystals, phosphorescent organics, glass, and nanocomposites.
  • Presented synthesis methods, advantages, and disadvantages of each system.

Conclusions:

  • Transparent afterglow phosphors are crucial for next-generation optical technologies.
  • Further research is needed to overcome current limitations and unlock full potential.
  • Future directions include optimizing material design and synthesis for enhanced performance.