1. Department of Advanced Technology and Science for Sustainable Development; Nagasaki University; 1-14 Bunkyo Nagasaki 852-8521 Japan
2. Department of Electrical and Electronic Engineering; Nagasaki University; 1-14 Bunkyo Nagasaki 852-8521 Japan
3. Department of Chemical and Materials Engineering; National Yunlin University of Science and Technology; 123 University Road, Section 3 Douliou Yunlin 64002 Taiwan
4. Department of Materials and Energy Engineering; Ming Dao University; No.369, Wen-Hua Road Pitou Changhua 52345 Taiwan