PbS/PbSe structures with core-shell type morphology synthesized from PbS nanocrystals

Dmitry S. Koktysh, James R. McBride, Sriram K. Dixit, L. C. Feldman, Sandra J. Rosenthal

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Colloidal PbS/PbSe nanostructures with core-shell type morphology have been synthesized for the first time using a simple chemical procedure where template PbS nanocrystals (NCs) were treated with Se solution in tributylphosphine at elevated temperature. The Se-coated PbS NCs were structurally and optically characterized by high resolution transmission electron microscopy (HRTEM), x-ray diffraction (XRD), Rutherford backscattering spectrometry (RBS) analysis, absorption and photoluminescence (PL) spectroscopy. Synthesized PbS/PbSe structures can be of particular importance in photovoltaic applications where fabrication of heterostructures with compositional modulation on the nanometer scale is essential.

Original languageEnglish
Article number495607
JournalNanotechnology
Volume18
Issue number49
DOIs
Publication statusPublished - Dec 12 2007

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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