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Tape transfer atomization patterning of liquid alloys for microfluidic stretchable wireless power transfer
Seung Hee Jeong1, Klas Hjort1, Zhigang Wu2
1Department of Engineering Sciences, The Angstrom Laboratory, Uppsala University, Box 534, 75121, Uppsala, Sweden.
Scientific Reports
|February 13, 2015
Summary
Researchers developed a new method to pattern liquid alloys for self-powered stretchable electronics. This technology enables durable, hybrid-integrated power sources for applications on soft surfaces like human skin.
Area of Science:
- Materials Science
- Electronics Engineering
- Biomedical Engineering
Background:
- Stretchable electronics require mechanical compliance for integration with soft biological tissues.
- Autonomous, self-powered systems are crucial for fully realizing the potential of stretchable devices.
- Existing fabrication methods often lack scalability and compatibility with soft substrates.
Purpose of the Study:
- To present a novel technology for patterning liquid alloys on soft substrates.
- To enable the fabrication of hybrid-integrated power sources for microfluidic stretchable electronics.
- To demonstrate a scalable and robust manufacturing process for stretchable conductors.
Main Methods:
- Utilized atomized spraying of a liquid alloy onto a soft surface.
- Employed a tape-transferred adhesive mask for precise patterning.
- Developed a multilayer fabrication technique for integrated devices.
Main Results:
- Achieved high-quality patterns of liquid conductors on a meter scale.
- Demonstrated a microfluidic stretchable wireless power transfer device with an integrated LED.
- The device maintained functionality after over 1,000 cycles between 0% and 25% strain.
Conclusions:
- The developed liquid alloy patterning technology offers a universal fabrication process for stretchable electronics.
- This method facilitates the creation of self-powered, hybrid-integrated systems for soft electronics.
- The demonstrated device highlights the potential for robust, long-lasting power solutions in wearable and implantable applications.
