1. Intelligent Polymer Research Institute University of Wollongong, Australia Wollongong NSW 2500 Australia
2. Institute for Superconducting and Electronic Materials University of Wollongong Wollongong NSW 2500 Australia
3. University of Duisburg‐Essen Hufeland Str. 55 45147 Essen Germany
4. School of Electrical Computer and Telecommunications Engineering Faculty of Engineering and Information Sciences University of Wollongong Wollongong NSW 2522 Australia