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WS2 nanotubes have been filled and intercalated by molten phase caesium iodide. The presence of caesium iodide inside the WS2 nanotubes has been determined using high-resolution transmission electron microscopy (HRTEM) coupled with electron energy-loss spectroscopy (EELS) and energy-dispersive X-ray spectroscopy (EDS). Noticeably, a Moiré pattern was observed due to the interference between encapsulated CsI and WS2 layers. The intercalation of CsI into the host concentric WS2 lattices resulted in an increase in the interplanar spacing.
WS2 nanotubes have been filled and intercalated by molten phase caesium iodide. The presence of caesium iodide inside the WS2 nanotubes has been determined using high-resolution transmission electron microscopy (HRTEM) coupled with electron energy-loss spectroscopy (EELS) and energy-dispersive X-ray spectroscopy (EDS). Noticeably, a Moiré pattern was observed due to the interference between encapsulated CsI and WS2 layers. The intercalation of CsI into the host concentric WS2 lattices resulted in an increase in the interplanar spacing.
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This work was supported by the Israel Science Foundation, European Research Council (ERC) grant (No. INTIF 226639); H. Perlman Foundation and the Cherna Moskowitz Center for Nano and Bio-Nano imaging. We thank Dr. Rita Rosentsveig for the supply of WS2 inorganic nanotubes. G. T. acknowledges support through FP7 European Community Marie Curie European Reintegration Grant (ERG) (No. PERG04-GA-2008-239303) and B. B. a contract from Ministry of Science and Innovation (Ministerio de Ciencia e Innovación, MICINN) Spain. S. Y. H was supported by a Samsung Corporation fellowship (2005–2009). B. G. D. is a Royal Society-Wolfson Research Merit Award recipient and is also supported by an Engineering and Physical Sciences Research Council of the UK (EPSRC) Platform Grant (No. EPSRC EP/E000614/1).
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