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Related Experiment Video

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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Core-Shell Fluorescent Polymeric Particles with Tunable White Light Emission Based on Aggregation Microenvironment

Guan Wang1, Hao Yu1, Liming Yang1

  • 1Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China.

Angewandte Chemie (International Ed. in English)
|September 24, 2021
PubMed
Summary
This summary is machine-generated.

Novel white-light emitting polymers (WLEPs) utilize aggregation-induced emission (AIE) and Förster resonance energy transfer (FRET) for tunable light. Core-shell engineering allows solid-state emission control, showing promise for anti-counterfeiting applications.

Keywords:
FRETaggregation microenvironmentaggregation-induced emissioncore-shell engineeringwhite light emission

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Optoelectronics

Background:

  • White-light emitting polymers (WLEPs) are crucial for lighting and optoelectronic devices.
  • Aggregation-induced emission (AIE) and Förster resonance energy transfer (FRET) are key mechanisms for WLEPs.
  • Controlling the aggregation microenvironment is vital for tuning WLEP properties.

Purpose of the Study:

  • To develop a novel strategy for constructing WLEP particles with tunable white light emission.
  • To investigate the role of the aggregation microenvironment in modulating AIE and FRET processes.
  • To demonstrate the potential of these WLEPs in solid-state applications like anti-counterfeiting.

Main Methods:

  • Stepwise self-stabilized precipitation polymerization of two emission-complementary AIEgens.
  • Core-shell engineering of fluorescent polymeric particles (CS-FPPs).
  • Modulation of aggregation microenvironment through polymer swelling and shrinking.

Main Results:

  • Successfully constructed CS-FPPs exhibiting tunable white light emission.
  • Demonstrated that AIE characteristics and FRET efficiency are controllable via the aggregation microenvironment.
  • Achieved fast, tunable white light emission in the solid state.

Conclusions:

  • The aggregation microenvironment significantly impacts the emission properties of luminogens.
  • This work provides a pathway for developing high-efficiency, emission-tunable materials.
  • The developed WLEPs show potential for advanced applications, including anti-counterfeiting.