Synthesis, assembly, and optical properties of shape- and phase-controlled ZnSe nanostructures

Asit Baran Panda, Somobrata Acharya, Shlomo Efrima, Yuval Golan

Research output: Contribution to journalArticlepeer-review

84 Scopus citations

Abstract

Shape-, size-, and phase-controlled ZnSe nanostructures were synthesized by thermolysis of zinc acetate and selenourea using liganding solvents of octadecylamine (ODA) and trioctylphosphineoxide (TOPO) at different molar ratios. Materials synthesized in pure ODA resulted in uniform ultranarrow nanorods and nanowires of 1.3 nm in diameter. Morphological change from nanowire to spherical particle of larger diameter occurs with increasing TOPO/ODA ratio. Variation of the TOPO content in the mixed solvent also allows control of the crystallographic phase of ZnSe (wurtzite or zinc blende). The conditions and mechanisms of shape and phase control are discussed. Ultra-high-density networks of the ordered wires are achieved using the Langmuir-Blodgett technique in a single step as an essential stage on the route to ultra-high-density semiconductor nanocircuit fabrication.

Original languageEnglish
Pages (from-to)765-770
Number of pages6
JournalLangmuir
Volume23
Issue number2
DOIs
StatePublished - 16 Jan 2007

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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