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Efficient and Tunable White-Light Emission Using a Dispersible Porous Polymer.

Alex M James¹, Robert Dawson¹

¹Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, South Yorkshire, S3 7HF, UK.

Macromolecular Rapid Communications

|May 26, 2020

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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.

Keywords:

microporous polymers porous dispersible polymers radical polymerization solution-processable polymers white-light emission

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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.