Three-dimensional characterization of multiply twinned nanoparticles by high-angle tilt series of lattice images and tomography
- 176 Downloads
A new electron tomography methodology is presented which allows the reconstruction of external particle shape from lattice resolved high-resolution electron microscopy images. The technique is based on the shape-from-silhouette binary backprojection algorithm after filtering of the lattice contrast. The simultaneous availability of particle shape and crystallographic lattice plane orientations allows the correlation of faceting with crystallographic orientations. The method is demonstrated using a multiply twinned decahedral gold nanoparticle. Eligibility limits in terms of degree of convexity are derived.
KeywordsGold nanoparticles Tomography Twin boundaries 3D reconstruction Instrumentation Metrology
This study was supported by a grant from the EPSRC Basic Technology Programme, GR/S85689/01, UK.
- Frank J (2007) Electron tomography: methods for three-dimensional visualization of structures in the cell, 2nd edn. Plenum Press, New YorkGoogle Scholar
- Sayle DC, Seal S, Wang Z, Mangili BC, Price DW, Karakoti AS, Satyanarayana VT, Kuchibhatla N, Hao Q, Möbus G, Xu X, Sayle TXT (2008) Mapping nanostructure: a systematic enumeration of nanomaterials by assembling nanobuilding blocks at crystallographic positions. ACS Nano 2:1237–1251CrossRefPubMedGoogle Scholar
- Williams GJ, Pfeifer MA, Vartanyants IA, Robinson IK (2003) Three-dimensional imaging of microstructure in Au nanocrystals. Phys Rev Lett 90:175501-1–175501-4Google Scholar