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Controlled preferential oxidation of grain boundaries in monolayer tungsten disulfide for direct optical imaging.

Abstract:

Synthetic 2D crystal films growth by chemical vapour deposition are typically polycrystalline and determining grain size within domains and continuous films is crucial for determining their structure. Here we show that grain boundaries in the 2D transition metal dichalcogenide WS2, grown by CVD can be preferentially oxidized by controlled heating in air. Under our developed conditions, the bulk WS2 remains relatively unaffected, whilst preferential degradation at the grain boundaries causes a...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1021/acsnano.5b00852

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
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Publisher:
American Chemical Society Publisher's website
Journal:
ACS Nano Journal website
Volume:
9
Issue:
4
Pages:
3695-3703
Publication date:
2015-04-21
DOI:
EISSN:
1936-086X
ISSN:
1936-0851
URN:
uuid:e837d341-f527-4626-8c08-eaff16c86d55
Source identifiers:
518475
Local pid:
pubs:518475
Language:
English
Keywords:

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