Abstract
Cd1-xMnxO (x = 0, 2, 5, 7, 10, 15, 20%) nano-particles were synthesized using co-precipitation method and were characterized to investigate the effect of doping of Mn2+ ions on the properties of CdO. X-ray diffractographs show the cubic structure of pure and Mn2+ substituted CdO nano-particles. XPS spectra illustrate that Mn2+ ions substituted at the Cd2+ sites in CdO lattice. Raman micrographs show Cd–O vibrations in CdO but Mn–O stretching along with Cd–O vibrations in Mn2+ substituted nano-particles at higher doping. At low doping, the band gap increases but decreases afterwards thereby show the influence of electron concentration after the substitution of Mn2+ ions. Urbach energy has been calculated from UV–Visible analysis and their values are found to follow the band gap broadening and narrowing with Mn2+ substitution. Surface morphology and FTIR of nano-particles also confirm the substitution of Mn2+ ions into CdO lattice.
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Leelavati, Kumar, R. & Kumar, R. Structural and optical studies of Mn2+ substituted CdO nano-particles. Appl. Phys. A 127, 249 (2021). https://doi.org/10.1007/s00339-021-04390-3
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DOI: https://doi.org/10.1007/s00339-021-04390-3