عنوان المقالة:Study of the Effect of Annealing on Optical Properties of ZnFe2O4 Films Prepared by Chemical Spray Pyrolysis Method
نبيل علي بكر | Nabeel A. Bakr | 5256
نوع النشر
مجلة علمية
المؤلفون بالعربي
SA Selman, NA Bakr, RK Ismail
الملخص العربي
Zinc Ferrite (ZnFe2O4) thin films have been deposited by chemical spray pyrolysis method with thickness of (500 nm) on glass substrates at temperature of (400 ºC) using Zinc Nitrate and Ferric Nitrate as Zinc and Iron sources respectively. The effect of annealing with different temperatures (450 and 500) oC for (2h) on the optical properties for all prepared films was studied. The optical properties for all the films were studied by recording the transmittance and absorbance spectra in the range of (300 - 900) nm. The results showed that the energy band gap for allowed direct electronic transition varies from 2.60 to 2.70 eV with increase in annealing temperature. The optical constants (absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant and optical conductivity) as a function of photon energy, for all prepared films were calculated.
تاريخ النشر
01/09/2016
الناشر
Int. J. Thin. Fil. Sci. Tec.
رابط خارجي
http://www.naturalspublishing.com/Article.asp?ArtcID=10588
الكلمات المفتاحية
Spinel ferrites, ZnFe2O4 thin films, Chemical Spray Pyrolysis, Optical Properties
رجوع