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Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
Published on: September 2, 2015
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Three-dimensional conformal graphene microstructure for flexible and highly sensitive electronic skin.
Jun Yang1,2, Qincui Ran1,3, Dapeng Wei1,4
1Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People's Republic of China.
Nanotechnology
|February 1, 2017
Summary
We developed a stretchable electronic skin using graphene nanowalls and PDMS. This advanced wearable sensor demonstrates high sensitivity for health monitoring and detecting movements and vibrations.
Area of Science:
- Materials Science
- Nanotechnology
- Wearable Electronics
Background:
- Developing advanced electronic skin (E-skin) is crucial for next-generation wearable devices.
- Existing E-skins often face limitations in stretchability, sensitivity, and fabrication complexity.
Purpose of the Study:
- To create a highly stretchable and sensitive E-skin.
- To explore a facile fabrication method for microstructured graphene.
- To demonstrate the potential of the E-skin in various applications.
Main Methods:
- Fabrication of microstructured graphene nanowalls (GNWs) on an unpolished silicon wafer.
- Transferring the GNW microstructure onto a polydimethylsiloxane (PDMS) substrate using a stamping method.
- Characterization of the E-skin's mechanical and electrical properties under strain.
Main Results:
- The E-skin achieved nearly 100% stretchability with a large contact interface between GNWs and PDMS.
- Exhibited high sensitivity with a resistance change up to 6500% and a gauge factor of 65.9 at 99.64% strain.
- Demonstrated responsive detection of joint movement, eye movement, and sound vibration.
Conclusions:
- The facile combination of GNWs and PDMS results in a highly stretchable and sensitive E-skin.
- The developed E-skin shows significant potential for applications in healthcare, body monitoring, and wearable devices.
- This fabrication approach offers a scalable and cost-effective method for producing advanced E-skins.
