One-Step Thermolysis Synthesis of Divalent Transition Metal Ions Monodoped and Tridoped CdS and ZnS Luminescent Nanomaterials

Mn2+, Co2+, or Ni2+ monodoped CdS (or ZnS) and Mn2+-Co2+-Ni2+ tridoped CdS (or ZnS) have been successfully synthesized by novel one-step thermolysis method using thiourea as a sulphur source. The synthesized nanomaterials were characterized by X-ray diffraction (XRD), transmission electron microscop...

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Bibliographic Details
Published in:Journal of nanomaterials 2014-01, Vol.2014 (2014), p.1-11
Main Authors: Saeed, S. E., Abdel-Mottaleb, Mohamed Sabry, Abdel-Mottaleb, Mohamed M. S.
Format: Article
Language:English
Subjects:
Cadmium
Defects
Grain size
II-VI semiconductors
Luminescence
Nanomaterials
Nanoparticles
Nitrates
Quantum dots
Scanning electron microscopy
Spectra
Sulfur
Transition metals
Transmission electron microscopy
X-ray diffraction
Zinc sulfides
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Summary:Mn2+, Co2+, or Ni2+ monodoped CdS (or ZnS) and Mn2+-Co2+-Ni2+ tridoped CdS (or ZnS) have been successfully synthesized by novel one-step thermolysis method using thiourea as a sulphur source. The synthesized nanomaterials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). It is found that the average diameter and morphology of the synthesized samples varied with the nature of dopant ion. The successful doping of Mn2+-Co2+-Ni2+ tridoped ions into the host CdS (or ZnS) was proved by the EDX spectra. The luminescence of CdS is only enhanced when monodoped with Mn2+ whereas it is enhanced when ZnS is either monodoped with Mn2+, Co2+, or Ni2+ or tridoped with Mn2+-Co2+-Ni2+. The synthesized samples could therefore offer opportunities for further fundamental research and technological applications.
ISSN:1687-4110
1687-4129
DOI:10.1155/2014/873036