Abstract
We hereby report the synthesis of Mg0.95Mn0.05O nanostructures using auto-combustion method. Effect of incorporation of different transition metal dopants (cobalt, nickel and copper) on structural, optical, morphological and dielectric properties of pristine Mg0.95Mn0.05O is investigated. X-ray diffraction plots confirm the cubic crystal structure of these samples. The crystallite size is found to be 78.2, 67.02, 78.11 and 64 nm for pure, Co, Cu and Ni doped MgMnO, respectively. Raman analysis clearly envisages the purity of the presently synthesized samples. Optical transmission spectrum shows that samples are highly transparent in the UV–Visible region. In addition, the FTIR results established the presence of magnesium oxide in all samples. Dielectric characterization depicts a reasonable decrease in the dielectric constant ε′ as function of improving frequency, which in turn confirms its dispersive nature.
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Acknowledgements
Authors are very thankful to UGC-DAE CSR, Indore for providing the necessary characterization facilities. I. Islam also wants to acknowledge Prof. Dinesh Varsheney, School of Physics, Devi Ahliya University, Khandwa Road Campus Indore-452001 India, for useful discussions and guidance.
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Islam, I., Khandy, S.A., Zaman, M.B. et al. Effect of 3d transition metal doping (Co, Ni and Cu) on structural, optical, morphological and dielectric properties of sol–gel assisted auto-combusted Mg0.95Mn0.05O nanoparticles. J Mater Sci: Mater Electron 29, 3952–3956 (2018). https://doi.org/10.1007/s10854-017-8335-y
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DOI: https://doi.org/10.1007/s10854-017-8335-y