High-angle annular dark-field (HAADF) imaging technique in the scanning transmission electron microscope has been exploited to study self-assembled multilayer structures of Au/Ag nanoparticles. The HAADF image intensity depends monotonically on the mass and thickness of the sample. Various film thickness between one to four monolayers can be easily distinguished by evaluating the contrast.
- scanning transmission
- electron microscopy
- self-assembled materials
Chen, Y., Li, Z. Y., Yuan, J., Palmer, R. E., & Wilcoxon, J. P. (2005). Local three dimensional visualization of nanoparticle assemblies. Advanced Materials, 17(23), 2885-2888. https://doi.org/10.1002/adma.200500977