Morphological Evolution of PbSe Crystals via the CVD Route

Kibriya Ahmad, Mohammad Afzaal, Paul O'Brien, Guoxiong Hua, J. Derek Woollins

Research output: Contribution to journalArticlepeer-review

Abstract

The growth of highly faceted PbSe microcrystals from the aerosol-assisted chemical vapor deposition (CVD) of novel lead phosphonodiselenoato compounds (Pb[Ph(RO)PSe2](2), where R is a methyl group (Me) (1) or an ethyl group (Et) (2)) is reported. This is the first such example of growth using a CVD technique. As-deposited materials are analyzed by X-ray diffraction (XRD), scanning electron microscopy coupled with energy-dispersive X-ray analysis (SEM/EDAX), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy. During the deposition studies, it has been found that the resulting morphologies are strongly dependent on the growth temperature, as a result of kinetics.

Original languageEnglish
Pages (from-to)4619-4624
Number of pages6
JournalChemistry of Materials
Volume22
Issue number16
DOIs
Publication statusPublished - 24 Aug 2010

Keywords

  • NANOCRYSTAL SUPERLATTICES
  • SEMICONDUCTOR CLUSTERS
  • QUANTUM DOTS
  • NANOWIRES
  • GROWTH
  • FILMS
  • NANOPARTICLES
  • COMPOSITES
  • NANORODS
  • GAS

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