Structural and optical properties of Ca2+ doped ZnS nanoparticles

C. S. Pathak, M. K. Mandal

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this work, we synthesized undoped ZnS and Ca2+ doped ZnS nanoparticles by chemical precipitation method. The structural and optical properties of the prepared nanoparticles have been analyzed using X-ray diffraction, Field emission scanning electron microscope, UV-vis-NIR spectrophotometer and Fluorescence spectroscopy. XRD patterns showed that the ZnS and ZnS:Ca nanoparticles have zinc blende structure with the crystallite sizes of about 7-8 nm range. The value of optical band gap has been found to be in the range 4.41-4.06 eV. Room temperature photoluminescence (PL) spectrum of the undoped sample exhibits emission in the blue region with multiple peaks under UV excitation. Ca2+ doped ZnS samples shows enhanced visible light emissions under the same UV excitation wavelength of 310 nm.

Original languageEnglish
Pages (from-to)681-684
Number of pages4
JournalNanoscience and Nanotechnology Letters
Volume6
Issue number8
DOIs
StatePublished - 1 Aug 2014
Externally publishedYes

Keywords

  • Chemical synthesis
  • Optical properties
  • PL spectrophotometer
  • Structural

ASJC Scopus subject areas

  • Materials Science (all)

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