The effects of fluorine on the structural, surface morphology and optical properties of ZnO thin films
PHYSICA B-CONDENSED MATTER, cilt.394, sa.1, ss.86-92, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 394 Sayı: 1
- Basım Tarihi: 2007
- Doi Numarası: 10.1016/j.physb.2007.02.014
- Dergi Adı: PHYSICA B-CONDENSED MATTER
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.86-92
- Anahtar Kelimeler: thin film, optical band gap, ZnO, optical constant, SPRAY, TEMPERATURE, TRANSPARENT, AL
- Anadolu Üniversitesi Adresli: Evet
Özet
The optical and structural properties of fluorine-doped Zinc oxide (ZnO) thin films have been investigated. The X-ray diffraction spectra indicate that the films have polycrystalline nature. A ZnO single phase with a hexagonal wurtzite structure was observed in structure of the films. The grain size for the films was calculated using a well-known Scherrer's formula and the obtained values are in the range of 27-40 nm. The values of direct band gap E-g(d) were determined and these values change with doped fluorine (F) content. The shift of absorption edge is associated with Burstein-Moss effect. The width of localized states in the optical band of the films change with F content and the E-U values change inversely with optical band gap values of the films. (c) 2007 Elsevier B.V. All rights reserved.