3D characterization of CdSe nanoparticles attached to carbon nanotubes
Ana B. Hungria, Paul A. Midgley, Beatriz H. Juarez, Christian Klinke,, Horst Weller
TL;DR
This study uses advanced electron microscopy techniques to reveal the detailed crystallographic structure and attachment mechanism of CdSe nanoparticles on carbon nanotubes, showing epitaxial matching and morphological transformation.
Contribution
It provides the first detailed 3D characterization of CdSe nanoparticles attached to carbon nanotubes using electron tomography.
Findings
Nanoparticles are hexagonal-based with (001) planes matched to graphene
Nanoparticles undergo morphological transformation during attachment
Epitaxial matching occurs between CdSe and carbon nanotubes
Abstract
The crystallographic structure of CdSe nanoparticles attached to carbon nanotubes has been elucidated by means of high resolution transmission electron microscopy and high angle annular dark field scanning transmission electron microscopy tomography. CdSe rod-like nanoparticles, grown in solution together with carbon nanotubes, undergo a morphological transformation and become attached to the carbon surface. Electron tomography reveals that the nanoparticles are hexagonal-based with the (001) planes epitaxially matched to the outer graphene layer.
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