Investigation of the Structural Properties of Cobalt Doped Zinc Oxide Nanoparticles

Yıl 2019, Cilt: 7 Sayı: 1, 105 - 114, 01.03.2019

Güvenç Akgül Funda Aksoy Akgül

https://doi.org/10.15317/Scitech.2019.185

Öz

In this study, pure and Co (1%, 3% and 5%) doped ZnO nanoparticles were fabricated through mechanical ball milling technique, which is an inexpensive and easy method. X-ray diffraction and synchrotron-based X-ray absorption spectroscopy measurements were used to determine the crystalline properties and local atomic structures of the obtained nanostructured products. A wurtzite structure was observed for all the samples. X-ray absorption spectroscopy results was clearly indicated that the Co²⁺ ions were successfully substituted into the Zn²⁺ sites of the ZnO wurtzite lattice without forming any detectable secondary phases. The present study, investigating the structural properties of Co doped ZnO nanoparticles in detail, could make a significant contribution to the potential use of doped ZnO in both spintronic and other nanotechnological applications.

Anahtar Kelimeler

Co doped ZnO, X-ray diffraction, X-ray absorption spectroscopy, Wurtzite structure

KOBALT KATKILI ÇİNKO OKSİT NANOPARÇACIKLARIN YAPISAL ÖZELLİKLERİNİN İNCELENMESİ

Öz

Bu
çalışmada, katkısız ve Co (%1, %3 ve %5 ) katkılı ZnO nanoparçacıkları ucuz ve
kolay bir yöntem olan mekanik bilyeli öğütme tekniği ile üretildi. Elde edilen
nanoyapılı ürünlerin kristal özelliklerini ve yerel atomik yapılarını
belirlemek için X-ışını kırınımı ve sinkrotron-temelli X-ışını soğurma
spektroskopisi ölçümleri kullanıldı. Tüm örnekler için wurtzite yapısı
gözlendi. X-ışını soğurma spektroskopisi sonuçları, Co²⁺ iyonlarının
saptanabilir herhangi bir ikincil faz oluşturmadan ZnO wurtzite örgüsündeki Zn²⁺
bölgelerine başarıyla geçtiğini açıkça gösterdi. Co katkılı ZnO
nanoparçacıkların yapısal özelliklerini detaylı şekilde inceleyen bu çalışma,
katkılı ZnO’nun hem spintronik hem de diğer nanoteknolojik uygulama
alanlarındaki potansiyel kullanımına önemli bir katkı oluşturabilir.

Anahtar Kelimeler

Co katkılı ZnO, X-ışını kırınımı, X-ışını soğurma spektroskopisi, Wurtzite yapısı

Kaynakça

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