Designing, fabricating, and imaging Raman hot spots

Lidong Qin, Shengli Zou, Can Xue, Ariel Atkinson, George C Schatz, Chad A. Mirkin

Research output: Contribution to journalArticle

363 Citations (Scopus)

Abstract

We have developed a probe of the electromagnetic mechanism of surface-enhanced Raman scattering via Au nanodisk arrays generated by using on-wire lithography. In this approach, disk thickness and interparticle gap are precisely controlled from 5 nm to many micrometers. Confocal Raman microscopy demonstrates that disk thickness and gap play a crucial role in determining surface-enhanced Raman scattering intensities. Theoretical calculations also demonstrate that these results are consistent with the electromagnetic mechanism, including the surprising result that the largest enhancement does not occur for the smallest gaps.

Original languageEnglish
Pages (from-to)13300-13303
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Volume103
Issue number36
DOIs
Publication statusPublished - Sep 5 2006

Fingerprint

Raman Spectrum Analysis
Electromagnetic Phenomena
Confocal Microscopy

Keywords

  • Discrete dipole approximation
  • Electromagnetic mechanism
  • Nanofabrication
  • Surface-enhanced Raman scattering
  • Templated synthesis

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Designing, fabricating, and imaging Raman hot spots. / Qin, Lidong; Zou, Shengli; Xue, Can; Atkinson, Ariel; Schatz, George C; Mirkin, Chad A.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 103, No. 36, 05.09.2006, p. 13300-13303.

Research output: Contribution to journalArticle

Qin, Lidong ; Zou, Shengli ; Xue, Can ; Atkinson, Ariel ; Schatz, George C ; Mirkin, Chad A. / Designing, fabricating, and imaging Raman hot spots. In: Proceedings of the National Academy of Sciences of the United States of America. 2006 ; Vol. 103, No. 36. pp. 13300-13303.
@article{1c3e37935f124cfdab6fef15f64acdcb,
title = "Designing, fabricating, and imaging Raman hot spots",
abstract = "We have developed a probe of the electromagnetic mechanism of surface-enhanced Raman scattering via Au nanodisk arrays generated by using on-wire lithography. In this approach, disk thickness and interparticle gap are precisely controlled from 5 nm to many micrometers. Confocal Raman microscopy demonstrates that disk thickness and gap play a crucial role in determining surface-enhanced Raman scattering intensities. Theoretical calculations also demonstrate that these results are consistent with the electromagnetic mechanism, including the surprising result that the largest enhancement does not occur for the smallest gaps.",
keywords = "Discrete dipole approximation, Electromagnetic mechanism, Nanofabrication, Surface-enhanced Raman scattering, Templated synthesis",
author = "Lidong Qin and Shengli Zou and Can Xue and Ariel Atkinson and Schatz, {George C} and Mirkin, {Chad A.}",
year = "2006",
month = "9",
day = "5",
doi = "10.1073/pnas.0605889103",
language = "English",
volume = "103",
pages = "13300--13303",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
number = "36",

}

TY - JOUR

T1 - Designing, fabricating, and imaging Raman hot spots

AU - Qin, Lidong

AU - Zou, Shengli

AU - Xue, Can

AU - Atkinson, Ariel

AU - Schatz, George C

AU - Mirkin, Chad A.

PY - 2006/9/5

Y1 - 2006/9/5

N2 - We have developed a probe of the electromagnetic mechanism of surface-enhanced Raman scattering via Au nanodisk arrays generated by using on-wire lithography. In this approach, disk thickness and interparticle gap are precisely controlled from 5 nm to many micrometers. Confocal Raman microscopy demonstrates that disk thickness and gap play a crucial role in determining surface-enhanced Raman scattering intensities. Theoretical calculations also demonstrate that these results are consistent with the electromagnetic mechanism, including the surprising result that the largest enhancement does not occur for the smallest gaps.

AB - We have developed a probe of the electromagnetic mechanism of surface-enhanced Raman scattering via Au nanodisk arrays generated by using on-wire lithography. In this approach, disk thickness and interparticle gap are precisely controlled from 5 nm to many micrometers. Confocal Raman microscopy demonstrates that disk thickness and gap play a crucial role in determining surface-enhanced Raman scattering intensities. Theoretical calculations also demonstrate that these results are consistent with the electromagnetic mechanism, including the surprising result that the largest enhancement does not occur for the smallest gaps.

KW - Discrete dipole approximation

KW - Electromagnetic mechanism

KW - Nanofabrication

KW - Surface-enhanced Raman scattering

KW - Templated synthesis

UR - http://www.scopus.com/inward/record.url?scp=33748623838&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748623838&partnerID=8YFLogxK

U2 - 10.1073/pnas.0605889103

DO - 10.1073/pnas.0605889103

M3 - Article

VL - 103

SP - 13300

EP - 13303

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 36

ER -