1. Department of Nano Convergence Engineering Jeonbuk National University Jeonju Jeonbuk 54896 Republic of Korea
2. Division of Science Education and Institute of Fusion Science Jeonbuk National University Jeonju Jeonbuk 54896 Republic of Korea
3. Carbon Composite Research Centre Department of Polymer – Nano Science and Technology Jeonbuk National University Jeonju Jeonbuk 54896 Republic of Korea