1. Institute of Organic and Polymeric Materials and Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan
2. Institute of Polymer Science and Engineering and Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
3. Faculty of Advanced Science and Technology, Ryukoku University, Otsu, Japan
4. Division of Electrical, Electronic and Infocommunications Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan