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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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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
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Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
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Updated: Jun 1, 2025

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Room-temperature phosphorescent transparent wood.

Xixi Piao1, Tengyue Wang1, Xuefeng Chen1

  • 1State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China.

Nature Communications
|January 20, 2025
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Researchers developed room-temperature phosphorescent transparent wood using luminescent difluoroboron β-diketonate compounds and methyl methacrylate. This novel material offers long afterglow lifetimes and high quantum yield for energy-saving applications.

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Area of Science:

  • Materials Science
  • Optoelectronics
  • Sustainable Building Materials

Background:

  • Transparent wood is a promising energy-saving building material.
  • Research on luminescent transparent wood is growing, but organic afterglow transparent wood remains underexplored.

Purpose of the Study:

  • To prepare room-temperature phosphorescent transparent wood.
  • To investigate the properties and potential applications of organic afterglow transparent wood.

Main Methods:

  • Utilized luminescent difluoroboron β-diketonate (BF2bdk) compounds, methyl methacrylate (MMA), delignified wood, and initiators.
  • Employed thermal initiation polymerization to create the phosphorescent transparent wood.
  • Investigated the interactions between PMMA and BF2bdk, and the role of the wood matrix.

Main Results:

  • Achieved room-temperature phosphorescent transparent wood with high transmittance.
  • Observed dipole-dipole interactions between PMMA and BF2bdk, enhancing intersystem crossing.
  • Demonstrated that the wood matrix provides a rigid environment and acts as an oxygen barrier, suppressing non-radiative decay and oxygen quenching.
  • The material exhibits diverse composition, long afterglow emission lifetimes, and high photoluminescence quantum yield.

Conclusions:

  • Successfully prepared a novel organic afterglow transparent wood.
  • The material shows potential for applications requiring high mechanical strength, hydrophobicity, and cost-effectiveness.
  • This development opens new avenues for energy-saving building materials with advanced luminescent properties.