This research deals with the study of the structural andoptical properties of NiO and Zn doped NiO nano films with different ratios (0.01,0.05,0.1 mol %). NiO nano films in thickness 100nm were deposited on a glass substrate using sol-gel spin coating technique. XRD results indicated that the films are polycrystalline and have cubic structure with a preferred orientation along (111). The average grain sizes of the crystallites estimated from XRD data was found to lie in the range of 19.11 – 25.05 nm. Data of AFM indicate that the surface of films is smooth.The optical transmittance value of nano NiO film reaches to 94% in the VIS and NIR regions, while it is value of films deposited with 0.1mol%Zn reaches to (91)% which is important for its applications as window layers in solar cells. The values of optical energy gap of NiO and Zn doping by 0.01, 0.05 and 0.1 mol % were equal to 3.73, and 3.58,3.42, 3.41 eV respectively.
International Letters of Chemistry, Physics and Astronomy (Volume 53)
F. S. Hashim and N. A. Sami, "Effect of Zn Doping on Structural and some Optical Studies of Nano NiO Films Prepared by Sol-Gel Technique", International Letters of Chemistry, Physics and Astronomy, Vol. 53, pp. 31-40, 2015