1. Division of Electronics and Electrical Engineering Dongguk University Seoul 04620 Republic of Korea
2. Department of Energy and Materials Engineering Dongguk University Seoul 04620 Republic of Korea
3. Qatar Environment and Energy Research Institute Hamad Bin Khalifa University (HBKU) Qatar Foundation 34110 Doha Qatar
4. Department of Chemical and Biochemical Engineering Dongguk University Seoul 04620 Republic of Korea
5. School of Electrical Engineering Korea University Seoul 02841 Republic of Korea