Structure of oxidized bismuth nanoclusters

Stevens, K, Ingham, B, Toney, M, Brown, S, Partridge, J, Ayesh, A and Natali, F 2007, 'Structure of oxidized bismuth nanoclusters', Acta Crystallographica Section B: Structural Science, vol. 63, no. 4, pp. 569-576.


Document type: Journal Article
Collection: Journal Articles

Title Structure of oxidized bismuth nanoclusters
Author(s) Stevens, K
Ingham, B
Toney, M
Brown, S
Partridge, J
Ayesh, A
Natali, F
Year 2007
Journal name Acta Crystallographica Section B: Structural Science
Volume number 63
Issue number 4
Start page 569
End page 576
Total pages 8
Publisher Blackwell Publishing Inc.
Abstract Synchrotron X-ray diffraction has determined that beta-Bi2O3 is the dominant oxide phase covering hexagonal bismuth nanoclusters produced in an inert gas aggregation source. Simulated Debye-Scherrer patterns have indicated that the oxide is 20 5 Å thick on average, at the surface of 320 40 Å diameter clusters. A Williamson-Hall analysis of the peak broadening was used to measure the non-uniform strain in clusters. The oxidized clusters were in -0.11 0.06% uniform compressive strain compared with other clusters without oxides detectable by X-ray diffraction which only have a small tensile uniform strain. High-resolution transmission electron microscopy (HRTEM) and multislice image simulations indicated a beta-Bi2O3 thickness of 20-50 Å. The HRTEM micrographs show the relative orientation between the oxide and the cluster core.
Subject Surfaces and Structural Properties of Condensed Matter
Keyword(s) High-resolution transmission electron microscopy
Oxidized bismuth nanoclusters
Peak broadening
Synchrotron X-ray diffraction
DOI - identifier 10.1107/S0108768107024652
Copyright notice © International Union of Crystallography 2007
ISSN 0108-7681
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