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A Versatile Strategy for Transparent Stimuli-Responsive Interference Coloration.
Seyedali Banisadr1, Adebola Oyefusi1, Jian Chen1
1Department of Chemistry and Biochemistry , University of Wisconsin-Milwaukee , Milwaukee , Wisconsin 53211 , United States.
ACS Applied Materials & Interfaces
|January 24, 2019
Summary
Researchers developed transparent stimuli-responsive interference coloration using a polymer-metal-substrate system. This innovation enables scalable, affordable structural color for advanced sensing applications like self-reporting windows.
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Bioinspired stimuli-responsive structural coloration has diverse applications.
- Thin film interference offers a scalable approach to structural coloration.
- Transparent substrates typically do not yield visible structural colors with thin polymer films.
Purpose of the Study:
- To present a novel strategy for transparent stimuli-responsive interference coloration (RIC).
- To enable scalable and affordable manufacturing of high-quality responsive structural coloration systems.
- To demonstrate real-time, continuous, colorimetric RIC sensors.
Main Methods:
- Utilized an ultrathin metal layer as an optical filter in a polymer-metal-substrate system.
- Tuned optical properties by varying metal layer thickness.
- Integrated stimuli-responsive polymers to create sensors for humidity, organic vapor, and temperature.
Main Results:
- Achieved transparent RIC with tunable transparency and interference colors.
- Demonstrated colorimetric sensors for various stimuli.
- Showcased a self-reporting, humidity-sensing window using the transparent RIC film.
Conclusions:
- The polymer-metal-substrate system provides a versatile method for transparent RIC.
- This technology enables the development of advanced sensing devices and intelligent materials.
- The approach is promising for scalable and cost-effective manufacturing of responsive coloration systems.
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