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Ultrastable and High-Performance Silk Energy Harvesting Textiles
Chao Ye1, Shaojun Dong1, Jing Ren2
1School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, People's Republic of China.
Nano-Micro Letters
|June 17, 2021
Summary
Researchers developed advanced energy harvesting textiles (EHTs) using silk
Area of Science:
- Materials Science
- Textile Engineering
- Wearable Electronics
Background:
- Energy harvesting textiles (EHTs) are crucial for wearable electronics and IoT devices.
- Achieving a balance between mechanical durability and triboelectric performance in EHTs is a significant challenge for practical, long-term applications.
Purpose of the Study:
- To design and fabricate high-performance EHTs by integrating natural silk's hierarchical structures with strategic material selection.
- To optimize both mechanical and triboelectric properties for robust energy harvesting textiles.
Main Methods:
- Utilized natural silk's hierarchical structural design principles.
- Employed rational material screening to identify optimal components.
- Fabricated EHTs integrating these design and material strategies.
Main Results:
- The developed EHTs exhibit excellent mechanical properties, including a tensile strength of 237 ± 13 MPa and toughness of 4.5 ± 0.4 MJ m⁻³ for single yarns.
- Achieved a high power output of 3.5 mW m⁻².
- Demonstrated exceptional structural stability, maintaining 99% conductivity after 2.3 million deformation cycles with no significant visual degradation.
Conclusions:
- The silk-inspired EHTs offer a promising solution for practical energy harvesting applications.
- These textiles show potential for integration into intelligent clothing, advanced energy harvesting systems, and human-interactive interfaces.
