Synthesis and characterization of ZnO tetrapods for optical and antibacterial applications

J. S. Tawale, K. K. Dey, R. Pasricha, K. N. Sood, A. K. Srivastava

Research output: Contribution to journalArticlepeer-review

Abstract

ZnO tetrapods have been grown by sublimation process employing thermal evaporation at 950 °C on quartz substrate. The grown ZnO tetrapods exhibited noteworthy microstructure, phase formation, emission bands and antibacterial performance. A detailed micro- and nano- analysis supported with analytical measurements elucidated the faceted tetrapod growth with hexagonal wurzite crystal structure of ZnO. Each arm of the tetrapod revealed a facetted hexagonal cross-section with uniform length and diameter. The photolumiscence spectra showed engrossing optical properties with pre-dominant green emission completely overwhelming the near band edge (NBE) UV peak. These fascinating tetrapod objects responded well for antibacterial activity against Escherichia coli and Staphylococcus aureus.

Original languageEnglish (US)
Pages (from-to)1244-1247
Number of pages4
JournalThin Solid Films
Volume519
Issue number3
DOIs
StatePublished - Nov 30 2010

Keywords

  • Antibacterial activity
  • Electron microscopy
  • Optical properties
  • ZnO tetrapods

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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