Synthesis and characterization of porous ZnO nanoparticles by hydrothermal treatment of as pure aqueous precursor

Trilochan Sahoo, Myoung Kim, Jong Hyeob Baek, Seong Ran Jeon, Jin Soo Kim, Yeon Tae Yu, Cheul Ro Lee, In Hwan Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The presence of the complexing agents in the growth solution poses risk of the unintentional doping in the synthesized product and hence is likely to adversely affect the intrinsic properties. Herein we report the synthesis of ZnO nanoparticles with porous microstructure using pure aqueous precursor. Crystalline ZnO nanoparticles were synthesized by thermal treatment of aqueous solution of zinc acetate in an open bath. The size of the nanocrystals was controlled by changing the initial precursor concentration. The structural and optical properties of the synthesized nanocrystals were analyzed by X-ray diffraction, high resolution transmission electron microscopy, UV-vis absorption and room temperature photoluminescence measurement techniques. The TEM and UV-vis spectral signature analyses confirmed the formation of dispersed single crystalline ZnO nanoparticles. The nanopowders were found to have disordered mesoporous structure. The synthesized nanocrystals exhibited characteristic band edge emission as well as to surface defect related deep level visible luminescence.

Original languageEnglish
Pages (from-to)525-530
Number of pages6
JournalMaterials Research Bulletin
Volume46
Issue number4
DOIs
Publication statusPublished - 2011 Apr
Externally publishedYes

Keywords

  • A. Nanostructures
  • A. Semiconductors
  • B. Chemical synthesis
  • C. Electron microscopy
  • D. Optical properties

ASJC Scopus subject areas

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

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