1. Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), 12, Bulmosan-ro 10Beon-gil, Changwon 51543, South Korea
2. Power Apparatus Research Center, Korea Electrotechnology Research Institute (KERI), 12, Bulmosan-ro 10Beon-gil, Changwon 51543, South Korea
3. Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 34113, South Korea