3D nanostar dimers with a sub-10-nm gap for single-/few-molecule surface-enhanced raman scattering.
basic_science · Level V
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- Record sourced from PubMed, PMID 24452910.
- Also identified by DOI 10.1002/adma.201304553.
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Abstract
Plasmonic nanostar-dimers, decoupled from the substrate, have been fabricated by combining electron-beam lithography and reactive-ion etching techniques. The 3D architecture, the sharp tips of the nanostars and the sub-10 nm gap size promote the formation of giant electric-field in highly localized hot-spots. The single/few molecule detection capability of the 3D nanostar-dimers has been demonstrated by Surface-Enhanced Raman Scattering.