Optical properties of ZnS nanoparticles prepared by high energy ball milling

C. S. Pathak, D. D. Mishra, V. Agarwala, M. K. Mandal

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


In this work, we synthesized zinc sulfide (ZnS) nanoparticles by the mechanochemical route using zinc acetate and sodium sulfide as source materials in a high energy planetary ball mill at rotation speed of 300 rpm with ball to powder ratio 5:1 for 30-120 min. Powder samples were collected at duration of 30 min for different analyses. The milled powders were washed with methanol to remove impurity and dried at 50 °C for 2 h. ZnS nanoparticles are characterized by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy, UV-vis-NIR spectrophotometry and fluorescence spectrophotometry. The crystallite size of synthesized ZnS nanoparticles is found to be approximately 2 nm. The optical band gap of the ZnS nanoparticles is found to be in the range of 4.71-5.17 eV. Room temperature photoluminescence (PL) spectra of the samples exhibit blue-light emission using UV excitation wavelength of 280 nm.

Original languageEnglish
Pages (from-to)525-529
Number of pages5
JournalMaterials Science in Semiconductor Processing
Issue number2
StatePublished - 1 Apr 2013
Externally publishedYes


  • Band gap
  • Mechanochemical
  • Nanoparticle
  • Optical absorption
  • XRD
  • ZnS

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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