Transmission electron microscopy of epitaxial PbS nanocrystals on polydiacetylene Langmuir films

Nataly Belman, Amir Berman, Vladimir Ezersky, Yevgeniy Lifshitz, Yuval Golan

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Highly oriented arrays of lead sulfide (PbS) nanocrystals have been prepared in ambient conditions by the exposure of crystalline polydiacetylene (PDA) Langmuir films to H2S gas at the air-PbCl2 solution interface. The nanocrystals were studied by transmission electron microscopy (TEM), electron diffraction (ED), dark field TEM imaging (DF), high resolution TEM (HRTEM) and fast Fourier transform (FFT) analysis of HRTEM images. Three distinct, coexisting orientations were observed with typical nanocrystal morphologies corresponding to each orientation. The 〈110〉pbs direction was aligned parallel to the PDA linear direction for all orientations, indicating a template-directed growth for the PbS/PDA system.

Original languageEnglish
Pages (from-to)S316-S321
JournalNanotechnology
Volume15
Issue number4
DOIs
StatePublished - 1 Apr 2004

ASJC Scopus subject areas

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

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