Journal article
Three-dimensional shapes and structures of lamellar-twinned fcc nanoparticles using ADF STEM
In
Journal of Electron Microscopy
—
2009, Volume 58, Issue 3, pp. 167-174
Abstract
Small particles with face-centred cubic structures can have non-single-crystallographic shapes. Here, an approach based on annular dark-field scanning transmission electron microscopy (STEM) is used to obtain information about the crystal sub-units that make up supported and unsupported twinned Pt, Pt alloy and Au nanoparticles.
The three-dimensional shapes of two types of lamellar-twinned particles (LTPs) of Pt are obtained using high-angle annular dark-field STEM. Possible growth mechanisms of the LTPs and origins for the contrast features in the recorded images are discussed.
| Language: | English |
|---|---|
| Publisher: | Oxford University Press |
| Year: | 2009 |
| Pages: | 167-174 |
| ISSN: | 14779986 and 00220744 |
| Types: | Journal article |
| DOI: | 10.1093/jmicro/dfp003 |
