Plasmonic focusing in rod-sheath heteronanostructures

Xiaodong Chen, Shuzhou Li, Can Xue, Matthew J. Banholzer, George C Schatz, Chad A. Mirkin

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

This paper describes the fabrication of plasmonic focusing, free-standing rod-sheath hetero-nanostructures based on electrochemical templated synthesis and selective chemical etching. These hetero-nanostructures take advantage of plasmon interference together with field enhancements due to sharp junction structures to function as stand-alone SERS substrates containing Raman hot spots at the interface of the rod and sheath segments. This result is investigated with empirical and theoretical (discrete dipole approximation, DDA) methods, and we show how plasmon interference can be tuned by varying the sheath and rod lengths.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalACS Nano
Volume3
Issue number1
DOIs
Publication statusPublished - Jan 2009

Fingerprint

sheaths
Nanostructures
rods
interference
Etching
electrochemical synthesis
Fabrication
Substrates
etching
dipoles
fabrication
augmentation
approximation

Keywords

  • Electrochemical deposition
  • Heteronanostructure
  • Plasmonics
  • SERS

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Chen, X., Li, S., Xue, C., Banholzer, M. J., Schatz, G. C., & Mirkin, C. A. (2009). Plasmonic focusing in rod-sheath heteronanostructures. ACS Nano, 3(1), 87-92. https://doi.org/10.1021/nn800695u

Plasmonic focusing in rod-sheath heteronanostructures. / Chen, Xiaodong; Li, Shuzhou; Xue, Can; Banholzer, Matthew J.; Schatz, George C; Mirkin, Chad A.

In: ACS Nano, Vol. 3, No. 1, 01.2009, p. 87-92.

Research output: Contribution to journalArticle

Chen, X, Li, S, Xue, C, Banholzer, MJ, Schatz, GC & Mirkin, CA 2009, 'Plasmonic focusing in rod-sheath heteronanostructures', ACS Nano, vol. 3, no. 1, pp. 87-92. https://doi.org/10.1021/nn800695u
Chen X, Li S, Xue C, Banholzer MJ, Schatz GC, Mirkin CA. Plasmonic focusing in rod-sheath heteronanostructures. ACS Nano. 2009 Jan;3(1):87-92. https://doi.org/10.1021/nn800695u
Chen, Xiaodong ; Li, Shuzhou ; Xue, Can ; Banholzer, Matthew J. ; Schatz, George C ; Mirkin, Chad A. / Plasmonic focusing in rod-sheath heteronanostructures. In: ACS Nano. 2009 ; Vol. 3, No. 1. pp. 87-92.
@article{0e618b815b2c44bfb3388e032f604804,
title = "Plasmonic focusing in rod-sheath heteronanostructures",
abstract = "This paper describes the fabrication of plasmonic focusing, free-standing rod-sheath hetero-nanostructures based on electrochemical templated synthesis and selective chemical etching. These hetero-nanostructures take advantage of plasmon interference together with field enhancements due to sharp junction structures to function as stand-alone SERS substrates containing Raman hot spots at the interface of the rod and sheath segments. This result is investigated with empirical and theoretical (discrete dipole approximation, DDA) methods, and we show how plasmon interference can be tuned by varying the sheath and rod lengths.",
keywords = "Electrochemical deposition, Heteronanostructure, Plasmonics, SERS",
author = "Xiaodong Chen and Shuzhou Li and Can Xue and Banholzer, {Matthew J.} and Schatz, {George C} and Mirkin, {Chad A.}",
year = "2009",
month = "1",
doi = "10.1021/nn800695u",
language = "English",
volume = "3",
pages = "87--92",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "1",

}

TY - JOUR

T1 - Plasmonic focusing in rod-sheath heteronanostructures

AU - Chen, Xiaodong

AU - Li, Shuzhou

AU - Xue, Can

AU - Banholzer, Matthew J.

AU - Schatz, George C

AU - Mirkin, Chad A.

PY - 2009/1

Y1 - 2009/1

N2 - This paper describes the fabrication of plasmonic focusing, free-standing rod-sheath hetero-nanostructures based on electrochemical templated synthesis and selective chemical etching. These hetero-nanostructures take advantage of plasmon interference together with field enhancements due to sharp junction structures to function as stand-alone SERS substrates containing Raman hot spots at the interface of the rod and sheath segments. This result is investigated with empirical and theoretical (discrete dipole approximation, DDA) methods, and we show how plasmon interference can be tuned by varying the sheath and rod lengths.

AB - This paper describes the fabrication of plasmonic focusing, free-standing rod-sheath hetero-nanostructures based on electrochemical templated synthesis and selective chemical etching. These hetero-nanostructures take advantage of plasmon interference together with field enhancements due to sharp junction structures to function as stand-alone SERS substrates containing Raman hot spots at the interface of the rod and sheath segments. This result is investigated with empirical and theoretical (discrete dipole approximation, DDA) methods, and we show how plasmon interference can be tuned by varying the sheath and rod lengths.

KW - Electrochemical deposition

KW - Heteronanostructure

KW - Plasmonics

KW - SERS

UR - http://www.scopus.com/inward/record.url?scp=61849120290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=61849120290&partnerID=8YFLogxK

U2 - 10.1021/nn800695u

DO - 10.1021/nn800695u

M3 - Article

C2 - 19206253

AN - SCOPUS:61849120290

VL - 3

SP - 87

EP - 92

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 1

ER -