Abstract
ZnFe2O4 nanocomposites have been prepared by a simple co-precipitation method. The prepared samples were characterized by Scanning Electron Microscopy (SEM), Powder X-ray Diffraction (XRD), Energy Disperse X-ray Analysis (EDX), Transmission electron microscopy (TEM) and UV-visible absorption spectral techniques. Conductivity measurements show a transition from ferrimagnetism to paramagnetism. The enhancement in fluorescence spectra shows that there is an electronic transition to an exciting level. In UV-Vis spectra, the peak observed at 647nm indicates ZnFe2O4 nanocomposites are a photoactive compound. The above results suggest that these nanomaterials can be used in optoelectronic applications.
Highlights
The development of optical nanoparticles has resulted in major advantages in biological applications, such as imaging and sensing, since the 1990s [1,2]
Onset shifts with respect to the quantum confinement [14]. These results suggest that fluorescence spectroscopy is a useful tool for monitoring the nature of the nanoparticles’ surface and how it changes with particle size
The ZnFe2O4 nanocomposites were prepared by employing a co‐precipitation method
Summary
The development of optical nanoparticles has resulted in major advantages in biological applications, such as imaging and sensing, since the 1990s [1,2]. These applications require monodisperse and photostable properties in nanoparticles, which are amenable to further surface modification for the conjugation of fluorophores [3]. Other research involved the preparation of Fe3O4/CdSe and Fe2O3/CdSe nanocomposites with magnetic properties [5,6]. The stability of ferrite nanocomposites is applicable in microwave devices because Zn and Ni ferrite have high resistivity, a high Curie temperature, chemical stability and good magnetic properties at high frequencies [7]
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