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Exploring the Elastomer Influence on the Electromechanical Performance of Stretchable Conductors
Samuel Lienemann1, Ulrika Boda1,2, Mohsen Mohammadi1
1Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Sweden.
ACS Applied Materials & Interfaces
|July 9, 2024
Summary
The elastomer type significantly impacts stretchable electronics performance. Understanding nanoscale interactions is key to preventing electrical failure in gold nanowire composites under strain.
Area of Science:
- Materials Science
- Electrical Engineering
- Biomedical Engineering
Background:
- Stretchable electronics are crucial for human body integration.
- Understanding elastomer effects on conductive composites is limited.
Purpose of the Study:
- Investigate elastomer influence on gold nanowire stretchable conductors.
- Determine factors causing performance variations in these composites.
Main Methods:
- Systematic study of five chemically distinct elastomers with similar Young's modulus.
- Electromechanical performance testing under cyclic strain.
- Comprehensive material characterization.
Main Results:
- Elastomer choice critically affects electromechanical performance under strain.
- Some composites fail rapidly, while others maintain integrity.
- Failure mechanism linked to nanoscale interactions, not macroscale homogeneity.
Conclusions:
- Elastomer properties dictate electrical failure mechanisms in stretchable conductors.
- Rational material design requires understanding nanoscale elastomer-conductor interactions.
- Improved understanding will advance stretchable electronics for biomedical applications.
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