1. Department of Chemistry, Koc University, Rumelifeneri Yolu, Sariyer, Istanbul, 34450, Turkey
2. Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
3. LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
4. Graduate School of Materials Science and Engineering, Koc University, Rumelifeneri Yolu, Sariyer, Istanbul 34450, Turkey
5. KUYTAM, Koc University Surface Science and Technology Center, 34450 Istanbul, Turkey