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<p>Titanium oxide-doped vanadium pentoxide (TVPO) films were by the dip-coating method in different TiO<sub>2</sub> ratios. The Predominant of xTiO<sub>2</sub>-100 − x V<sub>2</sub>O<sub>5</sub> as a substitutional solid solution was confirmed by X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). In addition, the optical properties including the transmittance, absorbance, and reflectance, were investigated via double-beam UV–VIS spectrophotometers. Depending on the Optical data, Urbach band tail energy, the refractive index, parameters of dispersion energy using the Wemple and DiDomenico (WDD) single-oscillator model, nonlinear refractive index, and first and third optical susceptibilities were also estimated. It was concluded that the doped V<sub>2</sub>O<sub>5</sub> films revealed a 2.2&#xa0;eV smaller optical band gap than the pure V<sub>2</sub>O<sub>5</sub> which is around 2.4&#xa0;eV, suggesting a variety of optical applications. The effects of TiO<sub>2</sub> doping on Linear and Nonlinear (NLO) parameters have been considered. It was found that the Higher-order refractive index and TiO<sub>2</sub> concentration are correlated; as the concentration rises, so does the n<sup>(2)</sup> value. In comparison, the value rose to 1.65 × 10<sup>–10</sup> esu for the highest concentration of 4% TiO<sub>2</sub>/V<sub>2</sub>O<sub>5</sub> films from 1.31 × 10<sup>–10</sup> esu for the smallest concentration of 0% TiO<sub>2</sub>/V<sub>2</sub>O<sub>5</sub> films. The current study shows that TiO<sub>2</sub> doping has a substantial impact on the optical and structural properties of V<sub>2</sub>O<sub>5</sub> films, which makes them attractive materials for a variety of applications, such as optoelectronic devices and nonlinear optical applications.</p>

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Superior linear and nonlinear optical performance for optoelectronic applications: the role of TiO2 in V2O5 films

  • 期刊论文

  • 发表日期：

    2025年1月3日

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  • M. M. El-Desoky,
  • Awad A. Ibraheem,
  • H. Elhosiny Ali,
  • Shereef A. Fareed,
  • Ahmed E. Hannora,
  • Ibrahim Morad

摘要

Titanium oxide-doped vanadium pentoxide (TVPO) films were by the dip-coating method in different TiO2 ratios. The Predominant of xTiO2-100 − x V2O5 as a substitutional solid solution was confirmed by X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). In addition, the optical properties including the transmittance, absorbance, and reflectance, were investigated via double-beam UV–VIS spectrophotometers. Depending on the Optical data, Urbach band tail energy, the refractive index, parameters of dispersion energy using the Wemple and DiDomenico (WDD) single-oscillator model, nonlinear refractive index, and first and third optical susceptibilities were also estimated. It was concluded that the doped V2O5 films revealed a 2.2 eV smaller optical band gap than the pure V2O5 which is around 2.4 eV, suggesting a variety of optical applications. The effects of TiO2 doping on Linear and Nonlinear (NLO) parameters have been considered. It was found that the Higher-order refractive index and TiO2 concentration are correlated; as the concentration rises, so does the n(2) value. In comparison, the value rose to 1.65 × 10–10 esu for the highest concentration of 4% TiO2/V2O5 films from 1.31 × 10–10 esu for the smallest concentration of 0% TiO2/V2O5 films. The current study shows that TiO2 doping has a substantial impact on the optical and structural properties of V2O5 films, which makes them attractive materials for a variety of applications, such as optoelectronic devices and nonlinear optical applications.