Kirigami stretchable strain sensors with enhanced piezoelectricity induced by topological electrodes

Rujie Sun, Jonathan Rossiter, Fabrizio Scarpa

Outline2

Introduction

Mechanical properties analysis

Inter-segment electrode design

Results and discussions

Future work

Introduction3

Stretchable electronics Material synthesis

Structural design Wavy shape Kirigami

Rogers, John A., Takao Someya, and Yonggang Huang. "Materials and mechanics for stretchable electronics." science327.5973 (2010): 1603-1607.Lamoureux, Aaron, et al. "Dynamic kirigami structures for integrated solar tracking." Nature communications 6 (2015): 8092.Blees, Melina K., et al. "Graphene kirigami." Nature 524.7564 (2015): 204.

Mechanical properties analysis4

(a) (b) (c)

(d)

L: Cut lengtha: Hinge lengthb: Cut spacingt: Film thickness

(e) (f)

Inter-segment electrode design 5

Results and discussions 6

Future work7

Real-time monitoring in cardiac as a self-powered pressure sensor;

Integration with wireless communication;

In-vivo validation in pig heart.

Acknowledgements8

The authors would like to acknowledge the Engineering and Physical Sciences Research Council through the EPSRC Centre for Doctoral Training in Advanced Composites for Innovation and Science [grant number EP/L016028/1]. R. Sun acknowledges the support from China Scholarship Council. J. Rossiter is supported by EPSRC grants EP/M020460/1 and EP/M026388/1.

Any Questions?

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Kirigami stretchable strain sensors with enhanced piezoelectricity induced by topological electrodesOutlineIntroductionMechanical properties analysisInter-segment electrode design Results and discussions Future workAcknowledgementsAny Questions?