- International Journal of Chemistry and Technology
- Vol: 4 Issue: 1
- Investigation of structural and optical properties of ZnO thin films deposited on glass substrates b...
Investigation of structural and optical properties of ZnO thin films deposited on glass substrates by wet chemical sol-gel technique
Authors : Seydi Doğan
Pages : 38-42
Doi:10.32571/ijct.704871
View : 9 | Download : 3
Publication Date : 2020-06-30
Article Type : Research
Abstract :Nickel doped ZnO (NZO) and undoped ZnO thin films were deposited by wet chemical sol-gel spin coating method and their optical and structural properties have in detail been investigated by X-ray diffraction and optical absorption measurements to observe the effect of doping with different values of Ni molarity. The NZO and undoped ZnO thin films showed a growing trend along the c-axis perpendicular to the substrate surface. The strong (002) diffraction peaks at 2θ = 35.743°, 35.836°, 35.840° and 36.041° were observed to belong to samples undoped ZnO, NZO (0.25%), NZO (0.50%) and NZO (0.75%) films, respectively. The band gap values have been calculated from the dependencies (2 vs hν) by extrapolating the straight lines to 2 = 0 and found as 3.2630 eV and 3.2820 eV for 0.75% NZO and undoped ZnO thin films, respectively.Keywords : Nickel doped ZnO, sol-gel growth, thin film