Study of Effect of the Chrome Additive on the Structural, Morphology and Optical Properties of Nanostructured Titanium dioxide Thin Film

• Published in: Journal of physics. Conference series Vol. 1999; no. 1; pp. 12061 - 12071
• Main Authors: Saleh, Adnan M, Ridha, Fatima Waly, Khadayeir, Abdulhussain A, Dawood, Mohammed O, Habubi, Nadir F, Chiad, Sami S
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.09.2021
• Subjects: Absorptivity; bandgap; Chromium; Crystallites; Doping; Morphology; Optical Properties; Physics; Refractivity; Spectrometry; Spray pyrolysis; structural; thin film; Thin films; TiO; Titanium; Titanium dioxide
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1999/1/012061

Abstract Undoped Titanium dioxide (TiO 2 ) and Cr-doped TiO 2 films were prepared by Spray Pyrolysis Technique (SPT). XRD styles showed that TiO 2 films were grown along dominant orientation of (111). Crystallite size increases from 8.95 nm to 9.70 nm as vanadium concentration increase, whereas the strain(%) parameter increased from 3.87 to 3.57. the AFM imaging shows that the Undoped TiO 2 and TiO 2 : Cr thin films was discontinuous surface with spherically grains decreased from (65.95-44.23 nm) with increase doping from 0% to 3%, and root-mean square (rms) roughness of surface is about (9.70-2.41) nm. Spectrometric analysis of deposited films showed high transmittance in spectral range from 300 to 900 nm, whereas the corresponding value of bandgaps was ranged from 3.48 to- 3.38 eV by Cr doping. Results show that doping of TiO 2 with Cr enhances the optical properties. the absorption coefficient (α), extinction coefficient (k) and refractive index (n) are increased when Cr additive is increasing.