1. Alan G. MacDiarmid Energy Research Institute, Department of Polymer Engineering, Graduate School and School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
2. Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Chudong-ro 92, Bongdong-eup, Wanju-gun, Jeollabuk-do 565-905, Republic of Korea
3. Jeonbuk Branch, Honam Division, Korea Conformity Laboratories, 136, Yeosan-ro, Deokjin-gu, Jeonju-si, Jeonbuk 54852, Republic of Korea
4. Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Shizuoka Institute of Science and Technology (SIST), 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan