Effect of Co Doping on Structural and Optical Properties of Zinc Oxide Nanoparticles Synthesized by Sol-Gel Method

Abstract

In the present work Pure and Cobalt (Co) doped Zinc Oxide (ZnO) Nanoparticles were synthesized by Sol-gel method. The effect of Co doping on structural and optical properties of Nanoparticles were investigated using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopic characterization techniques. The XRD spectrum revealed the formation of Wurtzite structure of ZnO. The structural properties of nanoparticles including particle size and lattice strain were calculated from XRD data. SEM shows the morphology of Nanoparticles. The presence of functional groups was analyzed from FTIR spectra. The properties of Cobalt doped zinc oxide nanoparticles prepared through simple cost effective, Sol-gel method can be used in optoelectronics and thermally stable devices.

Organic–Inorganic Nanohybrid Electrochemical Sensors from Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles and In-Situ Wrapped with Poly(2-methacryloyloxyethyl ferrocenecarboxylate) for Detection of the Content of Food Additives

“…The peaks at 1643 and 1531 cm −1 are ascribed to the characteristic C=C mode, as stated. The increased peak intensity at 3445 cm −1 is due to the stretching vibration band of water molecules on the surface of ZnO or MWCNTs/ZnO and MWCNTs [44]. The resulting nanohybrid produces some new vibration peaks attributed to PMAEFc characteristic modes in Figure 1B(c): the vibration band at 3100 cm −1 is assigned to the =C-H stretch mode of the ferrocenyl rings (Cp); the bands at 2960–2986 cm −1 are attributable to the C-H stretch mode; the peak at 1719 cm −1 is attributed to the C=O ester carbonyl stretch characteristic; the peak at 1589 cm −1 are assigned to the C=C stretch modes of the Cp rings; the peak at 1138–1276 cm −1 is correlated with the C-O stretch mode; and the bands at 772, 828, and 968 cm −1 reflect the =C-H stretching modes in the Cp rings and Fe-C or Cp-Fe stretch modes, respectively [45].…”

Characterization of Co and Al Doped with ZnO using Urea

“…Most of the promising technological applications deal with size dependent properties. As already known, Zinc Oxide has various advantages and applications since it is an efficient semiconducting material, with a gap of 3.3eV between the two bands at moderate thermal conditions [9]. Although wide range of Nano materials are used ZnO also have the best optical characteristics.…”

“…One such semiconductor nano particle is Zinc Oxide (ZnO), in nanozied form is most frequently used due to its high potential over other materials and hence ZnO is chosen for this research. As already known, Zinc Oxide has various advantages and applications since it is an efficient semiconducting material, with a gap of 3.3eV between the two bands at moderate thermal conditions [9]. Although wide range of nano materials are used ZnO also have the best optical characteristics [1] [7].…”

Interferometry Method as a Way to Find Nonlinear Optical Responses of Nanoparticles

“…In last few decades, the optical properties of nanoparticles have received considerable attention around the world [1][2][3]. There are different methods for evaluation of optical properties of nanoparticles.…”