The partial financial support of this project by the Swiss National Research Program NFP62 “Smart Materials” through the project Nr. 406240-126096 is gratefully acknowledged. The authors are thankful to Dr. Erik Lewin for the SEM images.
Stretchable Metallic Electrodes for Electroactive Polymer Actuators†
Article first published online: 7 MAR 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Volume 16, Issue 9, pages 1133–1139, September 2014
How to Cite
Habrard, F., Patscheider, J. and Kovacs, G. (2014), Stretchable Metallic Electrodes for Electroactive Polymer Actuators. Adv. Eng. Mater., 16: 1133–1139. doi: 10.1002/adem.201300569
- Issue published online: 16 SEP 2014
- Article first published online: 7 MAR 2014
- Manuscript Accepted: 5 FEB 2014
- Manuscript Received: 20 DEC 2013
- Swiss National Research Program NFP62 “Smart Materials”. Grant Number: 406240-126096
This paper describes preparation and characterization of silver electrodes deposited by magnetron sputtering with high stretching capability while maintaining their electrical conductivity. It is shown that tuning the microstructure and grain size of silver films of 30 nm thickness deposited on silicone membranes is an effective way to extend the stretching limit until rupture to 13%. It is shown that films with an open pores microstructure and small grains of 18 nm do not develop cracks that are observable by AFM, while dense films with grains of ca. 25 nm develop crack networks with individual crack widths of several hundred nanometers, causing conductive failure already at 4% strain.