1. Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea
2. Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea
3. Hybrid Materials Center (HMC), Sejong University, Seoul 05006, Korea
4. Convergence Semiconductor Research Center, Department of Electronics and Electrical Engineering, Dankook University, Yongin 16890, Korea
5. Advanced Functional Nanohybrid Material Laboratory, Department of Chemistry, Dongguk University-Seoul, Seoul 04620, Korea
6. Millimeter-wave Innovation Technology (MINT) Research Centre, Dongguk University-Seoul, Seoul 04620, Korea