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Efficient and Tunable White-Light Emission Using a Dispersible Porous Polymer
1Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, South Yorkshire, S3 7HF, UK.
Macromolecular Rapid Communications
|May 26, 2020
Summary
Researchers developed a novel porous polymer that emits white light by combining blue-emitting materials with yellow-emitting rhodamine B. This creates efficient, stable white light for potential display and lighting applications.
Area of Science:
- Polymer Chemistry
- Materials Science
- Nanotechnology
Background:
- Development of efficient white-light emitting materials is crucial for advanced lighting and display technologies.
- Porous polymers offer unique properties for encapsulating and stabilizing emissive molecules.
Purpose of the Study:
- To synthesize a novel dispersible porous polymer capable of white-light emission.
- To investigate the encapsulation of a yellow-emitting fluorophore within a blue-emitting porous polymer matrix.
Main Methods:
- Controlled radical polymerization of divinylbenzene and acrylic acid using a poly(ethylene glycol) macrochain transfer agent.
- Post-synthetic modification of the porous polymer with anthracene.
- Encapsulation of rhodamine B within the polymer core.
Main Results:
- A blue-emitting porous polymer (PEG-b-DVB-co-AA) was successfully synthesized and modified with anthracene.
- The polymer effectively encapsulated rhodamine B, yielding a white-light emitting dispersion.
- The resulting white-light dispersion exhibited a high quantum yield of 38% and CIE coordinates of (X=0.33, Y=0.32).
Conclusions:
- The synthesized porous polymer provides a robust platform for creating efficient white-light emitters.
- This approach offers a promising route for developing advanced materials for lighting and optoelectronic applications.
