1. Metallurgical and Materials Engineering Department, Middle East Technical University, Universiteler Mah. Dumlupinar Blv. No:1, Cankaya, Ankara 06800, Turkey
2. Aselsan Inc. Microelectronics Guidance and Electro-Optics Division, Cankırı Yolu 7. Km, Akyurt, Ankara 06750, Turkey
3. Center for Solar Energy Research and Applications (GUNAM), Middle East Technical University, Universiteler Mah. Dumlupinar Blv. No:1, Cankaya, Ankara 06800, Turkey
4. Micro and Nanotechnology Graduate Program, Middle East Technical University, Universiteler Mah. Dumlupinar Blv. No:1, Cankaya, Ankara 06800, Turkey