1. Division of Materials Science and Engineering
2. Hanyang University
3. Seoul 04763
4. Republic of Korea
5. Department of Physics
6. Khalifa University
7. Abu Dhabi 127788
8. United Arab Emirates
9. Centre for Advanced Electronics & Photovoltaic Engineering
10. International Islamic University
11. Islamabad 44000
12. Pakistan
13. Myongji University
14. Gyeonggi-do 17058