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A Metal-Like Conductive Elastomer with a Hierarchical Wrinkled Structure
Seokmin Lee1, Yongkwon Song1, Yongmin Ko1
1Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
Advanced Materials (Deerfield Beach, Fla.)
|December 13, 2019
Summary
Researchers developed a novel conductive elastomer with a unique wrinkled structure for advanced wearable electronics. This material offers superior electrical conductivity and stability, enabling fully elastomeric devices with enhanced performance.
Area of Science:
- Materials Science
- Nanotechnology
- Wearable Electronics
Background:
- Development of wearable electronics requires replacing rigid components with flexible, elastomeric materials.
- Current elastomeric electrodes exhibit limitations in electrical conductivity and stability.
Purpose of the Study:
- To create a metal-like conductive elastomer with high electrical performance and stability.
- To fabricate fully elastomeric electronics using the novel material.
Main Methods:
- Layer-by-layer assembly of metal nanoparticles and small-molecule linkers on elastomers.
- Induction of a wrinkled structure via in situ solvent swelling and nanoparticle assembly.
Main Results:
- Achieved remarkable electrical conductivity (170,000 S cm⁻¹ at 0% strain, 11,000 S cm⁻¹ at 100% strain).
- Demonstrated superior performance compared to existing elastomeric electrodes.
- Fabricated a fully elastomeric triboelectric nanogenerator with excellent power generation.
Conclusions:
- The wrinkled conductive elastomer offers exceptional electrical properties for advanced wearable applications.
- This material overcomes limitations of current elastomeric electrodes, paving the way for fully flexible electronics.
