Journal article
Colloidal Synthesis of Single-Layer MSe2 (M = Mo, W) Nanosheets via Anisotropic Solution-Phase Growth Approach
Journal of the American Chemical Society, Vol.137(23), pp.7266-7269
06/17/2015
DOI: 10.1021/jacs.5b02772
PMID: 26053408
Abstract
The generation of single-layer 2-dimensional (2D) nanosheets has been challenging, especially in solution-phase,, since it requires highly anisotropic growth processes that exclusively promote planar directionality during nanocrystal formation. In this study, we discovered that such selective growth pathways can be achieved by modulating the binding affinities of coordinating Capping ligands to the edge facets of 2D layered transition-metal chalcogenides (TMCs). Upon changing the functional groups Of the capping ligands from carboxylic add to alcohol and amine with accordingly modulated binding affinities to the edges, the number of layers of nanosheets is controlled. Single-layer MSe2 (M = Mo, W) TMC nanosheets are obtained with the use of oleic acid; while multilayer nanosheets are formed with relatively strong binding ligands such as oleyl alcohol and oleylamine. With the choice of appropriate capping ligands in the 2D anisotropic growth regime, our solution-based synthetic method can serve a new guideline for obtaining single-layer TMC nanosheets.
Details
- Title: Subtitle
- Colloidal Synthesis of Single-Layer MSe2 (M = Mo, W) Nanosheets via Anisotropic Solution-Phase Growth Approach
- Creators
- Wonil Jung - Yonsei UniversitySujeong Lee - Yonsei UniversityDongwon Yoo - Yonsei UniversitySohee Jeong - Yonsei UniversityPere Miro - Constructor UniversityAgnieszka Kuc - Constructor UniversityThomas Heine - Constructor UniversityJinwoo Cheon - Yonsei University
- Resource Type
- Journal article
- Publication Details
- Journal of the American Chemical Society, Vol.137(23), pp.7266-7269
- Publisher
- Amer Chemical Soc
- DOI
- 10.1021/jacs.5b02772
- PMID
- 26053408
- ISSN
- 0002-7863
- eISSN
- 1520-5126
- Number of pages
- 4
- Grant note
- FA2386-14-1-0014 / Asian Office of Aerospace Research and Development DFG HE 3543/18-1 / Deutsche Forschungsgemeinschaft; German Research Foundation (DFG) 2010-0018286 / National Creative Research Initiatives of Korea
- Language
- English
- Date published
- 06/17/2015
- Academic Unit
- Chemistry
- Record Identifier
- 9984618649702771
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