Molded plasmonic crystals for detecting and spatially imaging surface bound species by surface-enhanced Raman scattering

Alfred J. Baca, Tu T. Truong, Lee R. Cambrea, Jason M. Montgomery, Stephen K. Gray, Daner Abdula, Tony R. Banks, Jimin Yao, Ralph G. Nuzzo, John A. Rogers

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

This report introduces a type of plasmonic crystal that consists of metal coated nanostructures of relief molded on a polymer film as a substrate for surface-enhanced Raman scattering (SERS). Such crystals exhibit SERS enhancement factors of ∼ 105, over large areas and with sufficiently high levels of uniformity for precise two-dimensional Raman mapping of surface bound monolayers. The ease of fabrication together with the high sensitivities and spatial resolution that can be achieved suggests an attractive route to SERS substrates for portable chemical warfare agent detection, environmental monitors, noninvasive imaging of biomolecules, and other applications.

Original languageEnglish (US)
Article number243109
JournalApplied Physics Letters
Volume94
Issue number24
DOIs
StatePublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Molded plasmonic crystals for detecting and spatially imaging surface bound species by surface-enhanced Raman scattering'. Together they form a unique fingerprint.

Cite this