3D nanostar dimers with a sub-10-nm gap for single-/few-molecule surface-enhanced raman scattering

Manohar Chirumamilla; Andrea Toma; Anisha Gopalakrishnan; Gobind Das; Remo Proietti Zaccaria; Roman Krahne; Eliana Rondanina; Marco Leoncini; Carlo Liberale; Francesco De Angelis; Enzo Di Fabrizio

doi:10.1002/adma.201304553

3D nanostar dimers with a sub-10-nm gap for single-/few-molecule surface-enhanced raman scattering

Manohar Chirumamilla, Andrea Toma, Anisha Gopalakrishnan, Gobind Das, Remo Proietti Zaccaria, Roman Krahne, Eliana Rondanina, Marco Leoncini, Carlo Liberale, Francesco De Angelis, Enzo Di Fabrizio

Physics

Research output: Contribution to journal › Article › peer-review

285 Scopus citations

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.

Original language	British English
Pages (from-to)	2353-2358
Number of pages	6
Journal	Advanced Materials
Volume	26
Issue number	15
DOIs	https://doi.org/10.1002/adma.201304553
State	Published - 16 Apr 2014

Keywords

electron-beam lithography
nanostructures
plasmonics
single-molecule surface-enhanced Raman scattering
sub-10-nm gap

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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.",

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T1 - 3D nanostar dimers with a sub-10-nm gap for single-/few-molecule surface-enhanced raman scattering

AU - Chirumamilla, Manohar

AU - Toma, Andrea

AU - Gopalakrishnan, Anisha

AU - Das, Gobind

AU - Zaccaria, Remo Proietti

AU - Krahne, Roman

AU - Rondanina, Eliana

AU - Leoncini, Marco

AU - Liberale, Carlo

AU - De Angelis, Francesco

AU - Di Fabrizio, Enzo

PY - 2014/4/16

Y1 - 2014/4/16

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AB - 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.

KW - electron-beam lithography

KW - nanostructures

KW - plasmonics

KW - single-molecule surface-enhanced Raman scattering

KW - sub-10-nm gap

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JO - Advanced Materials

JF - Advanced Materials

IS - 15

ER -

3D nanostar dimers with a sub-10-nm gap for single-/few-molecule surface-enhanced raman scattering

Abstract

Keywords

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