Investigation of structural, morphological, optical and photoluminescence features of Mg-doped Zn0.96Ni0.04O nanoparticles for optoelectronics applications
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Abstract
Ni and Mg-doped ZnO nanoparticles have been synthesized using a facile sol–gel route. The XRD pattern revealed that the prepared samples have a wurtzite structure. The size of the particles is measured in the range of 13–17 nm, where the maximum size reduction is received for the Mg at. 2%—doped sample and discussed in terms of induced lattice distortion. The blue band absorption at 356 nm exists only in Mg-doped Zn0.96Ni0.04O. The optical band gap is wide-ranging between 3.91 and 3.87 eV, with Mg = 2% -doped Ni:ZnO nanoparticles exhibiting a red shift due to defect concentrations. The FTIR spectra confirmed the existence of Ni and Mg in ZnO structures as well as the presence of molecular vibrations. The PL spectra exposed emissions in UV, blue, and green regions, and changes in their intensities were related to zinc vacancy and oxygen defect sites. The PL spectra exposed emissions in UV, blue, and green regions, and changes in their intensities were related to zinc vacancy and oxygen defect sites.
期刊介绍：
Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest.
Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.
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