期刊
ACS NANO
卷 8, 期 6, 页码 5833-5842出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn500727w
关键词
gold; nanotriangles; shape separation; interfacial self-assembly; SERS
类别
资金
- European Research Council (ERC) [267867 Plasmaquo]
- Spanish Ministry of Education, Culture and Sports
Au nanotriangles display interesting nanoplasmonic features with potential application in various fields. However, such applications have been hindered by the lack of efficient synthetic methods yielding sufficient size and shape monodispersity, as well as by insufficient morphological stability. We present here a synthesis and purification protocol that efficiently addresses these issues. The size of the nanotriangles can be tuned within a wide range by simply changing the experimental parameters. The obtained monodispersity leads to extended self-assembly, not only on electron microscopy grids but also at the air liquid interface, allowing transfer onto centimeter-size substrates. These extended monolayers show promising performance as surface-enhanced Raman scattering substrates, as demonstrated for thiophenol detection.
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