
Saffettin Yıldırım, Kübra Pehlivan, Ali Durmuş*, and Kadir Esmer**,† 
Physics Department, İstanbul University, 34134, Vezneciler, İstanbul, Turkey
*Chemical Engineering Department, İstanbul University, 34320, Avcılar, İstanbul, Turkey
**Physics Department, Marmara University, 34722, Göztepe, İstanbul, Turkey
This Article2018; 42(5): 769-775
Published online Sep 25, 2018
Correspondence toPhysics Department, İstanbul University, 34134, Vezneciler, İstanbul, Turkey
**Physics Department, Marmara University, 34722, Göztepe, İstanbul, Turkey