Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 99, Issue 1, Pages 229-235Publisher
SPRINGER
DOI: 10.1007/s00339-009-5505-7
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Funding
- Zhejiang Province [QJD070-2003]
- National Science Foundation of Zhejiang Province [Y7080189]
- PCSIRT [IRT0754]
- SRFDP [20070335208]
- SRF [JWSL(2008)101]
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The author reports the mass production of dense inorganic graphene-like exfoliated single-crystalline niobium diselenide (NbSe2) (004) multilayered nanosheets standing on quartz substrate. Similar to the most-used micromechanical cleavage to exfoliated NbSe2 nanosheets, the synthesis was performed starting directly from bulk powdered counterparts, but using a novel type of substrate-irrelevant vapor-phase exfoliation. A possible intercalant-assisted thermal cleavage growth mechanism for the NbSe2-derived nanosheets, including a combination of intercalant injection-atomic delamination-thermal exfoliation-lateral growth, is discussed. This two-component nanosheet-forming technique appears to potentially work on homologous series of sandwich-type inorganic layered 2H transition-metal dichalcogenide compounds under proper experimental conditions as well.
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