1. Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
2. Department of Electrical Engineering, Aswan Faculty of Engineering, Aswan University, Aswan 81542, Egypt
3. Department of Physics, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Bangkok 10520, Thailand