Solubility of Mn in ZnO Nanocrystallites using Wet Chemical Synthesis

  • Esau Abekah Armah Foundation Department, Lancaster University Ghana
  • Francis Kofi Ampong Department of Physics, Kwame Nkrumah University of Science and Technology
  • Martin Egblewogbe Department of Physics, University of Ghana, Legon
  • Hubert Azoda Koffi Department of Physics, University of Ghana, Legon
  • Francis Boakye Department of Physics, Kwame Nkrumah University of Science and Technology
  • Josef Kwaku AmetefeeAmuzu Department of Physics, University of Ghana, Legon
  • Robert Kwame Nkum Department of Physics, Kwame Nkrumah University of Science and Technology

Abstract

There is a substantial amount of literature dealing with many aspects of synthesis and characterization of pure and doped binary compounds including Mn-doped ZnO which has been widely studied due to its superb properties as a dilute magnetic semiconductor (DMS). Aspects concerning doping limits for these compounds is an important stage in the search for new materials. Samples of Zn1-xMnxO nanocrystal were synthesized at temperatures of 180 °C and 200 °C using wet or liquid phase synthesis method. Dopant concentrations x=0.5, 1, 1.5, 2, 2.5, 5, 10, 20, 30, 40 and 50 per cent were studied. Powder x-ray diffraction (PXRD) patterns of the samples were analyzed with a view to determining the onset of secondary phases and hence the solubility limit of the dopant. The solubility limit for Mn in ZnO samples synthesized at temperature of 200 °C is realized at x <20%. For samples synthesized at temperature of 180 °C, the solubility limit is x <0.5%.

Keywords: Doping Concentration, Liquid Phase, Nanoparticles, Solubility Limit, Temperature, ZnO

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References


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Published
2019-11-05
How to Cite
[1]
E. Armah, “Solubility of Mn in ZnO Nanocrystallites using Wet Chemical Synthesis”, Adv. Nan. Res., vol. 2, no. 1, pp. 53-61, Nov. 2019.
Section
Research Articles