Projects per year
Abstract
This paper describes a new approach of quantification of annular-dark-field or Z-contrast image intensity as a function of inner acceptance angle of the detector in a scanning transmission electron microscope. By using size-selected nanoclusters of Pd (Z = 46) and Au (Z = 79), it is shown experimentally that the exponent in the power law I similar to Z(alpha) varies strongly between 1.2 and 1.8 as the collection angle changes from 14 to 103 mrad. The result is discussed in line with existing theoretical models. Factors, such as cluster size, structure, and orientation as well as the detector geometry, are also discussed for potential use of the work.
| Original language | English |
|---|---|
| Pages (from-to) | 073408 |
| Number of pages | 1 |
| Journal | Physical Review B |
| Volume | 84 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Aug 2011 |
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Dive into the research topics of 'Quantitative Z-contrast imaging in the scanning transmission electron microscope with size-selected clusters'. Together they form a unique fingerprint.Projects
- 2 Finished
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Towards an Atomic-scale understanding of the 3D Structures of size-selected Clusters on Surfaces
Li, Z. (Principal Investigator), Johnston, R. (Co-Investigator) & Palmer, R. (Co-Investigator)
Engineering & Physical Science Research Council
1/02/10 → 17/01/14
Project: Research Councils
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Materials Program Platform Grant : Nanostructured Surfaces
Palmer, R. (Principal Investigator), Guo, Q. (Co-Investigator), Li, Z. (Co-Investigator), Kaplan, A. (Co-Investigator) & Robinson, A. (Co-Investigator)
Engineering & Physical Science Research Council
1/07/07 → 31/12/11
Project: Research Councils