1. Department of Polymer-Nano Science and Technology and Department of Nanoconvergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
2. Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
3. Department of Chemistry and Biochemistry and Department of Mechanical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
4. Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Chudong-ro 92, Bongdong-eup, Wanju-gun, Jeonbuk 55324, South Korea