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Tailoring Shape and Crystallographic Phase of Copper Sulfide Nanostructures Using Novel Thiourea Complexes as Single Source Precursors

  • Kevin I. Y. Ketchemen
  • Malik D. Khan
  • Sixberth Mlowe
  • Linda D. Nyamen
  • Peter T. NdifonEmail author
  • Paul O’Brien
  • Neerish RevaprasaduEmail author
Article
  • 165 Downloads

Abstract

Copper sulfide thin films and nanoparticles have been prepared via aerosol assisted chemical vapour deposition and solvothermal hot injection routes, respectively. Both routes employed heterocyclic amine based benzoylthioureato-copper(II) complexes as single source precursors. Copper sulfide thin films of diverse morphologies ranging from cubic to snowy or irregular crystallites depending on the deposition temperature were observed. Powder X-ray diffraction studies of the as deposited thin films have indicated the formation of hexagonal and cubic phases of copper sulfide. In the case of the nanoparticles, Roxbyite (Cu1.75S) phase was obtained in dodecanethiol at temperatures of 150, 190 and 230 °C. However, a preferred growth of nanoparticles was observed in the presence of oleylamine whereas the roxbyite phase was obtained at temperatures of 150, 200 and 250 °C. Also transmission electron microscopy showed the formation of close to spherical, hexagonal nano-disk and rod shaped nanoparticles.

Keywords

Heterocyclic thiourea Aerosol assisted chemical vapour deposition Thermolysis Copper sulfide Nanoparticles Thin films 

Notes

Acknowledgements

The authors thank the Royal Society/Department for International Development (RS-DFID) Africa Capacity Building Initiative programme and the National Research Foundation (NRF) South Africa through the South African Research Chair Initiative (SARChI) for their financial support. The authors also acknowledge the University of Kwa-Zulu Natal for TEM analyses.

Supplementary material

10904_2018_1066_MOESM1_ESM.docx (438 kb)
Supplementary material 1 (DOCX 437 KB)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Kevin I. Y. Ketchemen
    • 1
    • 2
    • 3
  • Malik D. Khan
    • 1
  • Sixberth Mlowe
    • 1
  • Linda D. Nyamen
    • 2
  • Peter T. Ndifon
    • 2
    Email author
  • Paul O’Brien
    • 3
    • 4
  • Neerish Revaprasadu
    • 1
    Email author
  1. 1.Department of ChemistryUniversity of ZululandKwadlangezwaSouth Africa
  2. 2.Department of Inorganic ChemistryUniversity of Yaoundé IYaoundéCameroon
  3. 3.School of ChemistryUniversity of ManchesterManchesterUK
  4. 4.School of MaterialsUniversity of ManchesterManchesterUK

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