Tetraethylenepentamine-directed controllable synthesis of wurtzite ZnSe nanostructures with tunable morphology

Baojuan Xi, Shenglin Xiong*, Dechen Xu, Jingfa Li, Hongyang Zhou, Jun Pan, Jiangying Li, Yitai Qian

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A novel tetraethylenepentamine (TEPA)-directed method has been successfully developed for the controlled synthesis of ZnSe particles with distinctive morphologies, including nanobelts, nanowires, and hierarchically solid/hollow spheres. These structures, self-assembled from nanobelts and nanorods, have been synthesized by adjusting the reaction parameters, such as the solvent composition, reaction temperature, and the aging time. Results reveal that the volume ratio of H2O and TEPA plays a crucial role in the final morphology of ZnSe products. The mechanisms of phase formation and morphology control of ZnSe particles are proposed and discussed in detail. The products have been characterized by means of X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy (TEM), selected area electron diffraction, high-resolution TEM, Raman spectra and luminescence spectroscopy. The as-prepared ZnSe nanoparticles display shape- and size-dependent photoluminescent optical properties. This is the first time to report preparation of complex hollow structures of ZnSe crystals with hierarchy through a simple solution-based route. This synthetic route is designed to exploit a new H2O/TEPA/N2H4·H 2O system possibly for the preparation of other semiconductor nanomaterials.

Original languageEnglish (US)
Pages (from-to)9786-9791
Number of pages6
JournalChemistry - A European Journal
Volume14
Issue number31
DOIs
StatePublished - Oct 29 2008

Keywords

  • Hierarchical
  • Nanobelts
  • Nanowires
  • Photoluminescence
  • Spheres
  • Tetraethylenepentamine

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

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