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Organic molecules passivated Mn doped Zinc Selenide quantum dots and its properties

Authors
Journal
Applied Surface Science
0169-4332
Publisher
Elsevier
Publication Date
Volume
257
Issue
17
Identifiers
DOI: 10.1016/j.apsusc.2011.04.012
Keywords
  • Mn Doped Zinc Selenide
  • Nanoparticles
  • Wet Chemical Method
  • Optical Properties
  • Structural Properties
Disciplines
  • Chemistry
  • Physics

Abstract

Abstract Quantum dots of Mn doped Zinc Selenide with N-Methylaniline as the capping agent was prepared by simple and inexpensive wet chemical method. Size of the particles observed by TEM was of the order of 2–4 nm which was well consistent with the size measured by UV analysis. The presence of paramagnetic substance Mn 2+ in the ZnSe quantum dots was confirmed by EPR measurement. Mn doped ZnSe nanoparticles exhibited a strong blue emission that was strongly dependent upon the Mn dopant level and the surface passivation produced by N-Methylaniline. The stability of the product was studied by thermal analysis which shows that this product is highly suitable for opto-electronic applications.

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