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Title: Microscopic evidence of a new 9R-AgI polytype heterostructure
Authors: Lee, J.-S.
Lee, J.-W.
Lee, J.Y.
Adams, S. 
Guo, Y.-G.
Maier, J.
Keywords: 7h polytype
9r polytype
High resolution electron microscopy
Rietveld analysis
Silver iodide
Superionic conductor
Issue Date: May-2010
Citation: Lee, J.-S., Lee, J.-W., Lee, J.Y., Adams, S., Guo, Y.-G., Maier, J. (2010-05). Microscopic evidence of a new 9R-AgI polytype heterostructure. Journal of Nanoscience and Nanotechnology 10 (5) : 3341-3345. ScholarBank@NUS Repository.
Abstract: The extraordinary high ionic conductivity and the phase transition with large thermal hysteresis of AgI:Al 2O 3 nanocomposites can be ascribed to the presence of unusual polytype 7H and 9R modification of AgI as mesoscopic heterostructures. In addition to the 7H AgI phase in the composites previously Identified by a Rietveld analysis of X-ray diffraction, a new 9R AgI polytype with a characteristic three-fold contrast was directly evidenced by high resolution transmission electron microscopy. The epitaxial intergrowth of various polytypes was also microscopically evidenced which is in accordance with the Rietveld analysis. Copyright © 2010 American Scientific Publishers All rights reserved.
Source Title: Journal of Nanoscience and Nanotechnology
ISSN: 15334880
DOI: 10.1166/jnn.2010.2294
Appears in Collections:Staff Publications

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