Plasmon enhanced Raman from Ag nanopatterns made using periodically poled lithium niobate and periodically proton exchanged template methods
2012 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 116, no 50, 26543-26550 p.Article in journal (Refereed) Published
We study Ag nanopattern arrays formed using ferroelectric lithography based on two separate approaches, i.e., periodically poled lithium niobate (PPLN) and periodically proton exchanged (PPE) template methods. We demonstrate that such nanoarrays are plasmon active. Raman spectroscopy was applied to study molecular probe 4-aminothiophenol (4-ABT) absorbed onto a silver nanostructured array. The observed Raman spectra show peaks arising from b2 modes, which occur for plasmon enhanced Raman from 4-ABT in place of a1 modes, which occur in normal Raman scattering. We demonstrate that the PPLN and PPE substrates possess different plasmonic properties with PPE creating a stronger SERS signal relative to PPLN substrates.
Place, publisher, year, edition, pages
2012. Vol. 116, no 50, 26543-26550 p.
4-aminothiophenol, Molecular Probes, Nano pattern, Nanoarrays, Nanostructured arrays, Normal Raman scattering, Periodically poled lithium niobate, Plasmonic properties, Proton exchanged, Template methods
IdentifiersURN: urn:nbn:se:kth:diva-109451DOI: 10.1021/jp310248wISI: 000312519600049ScopusID: 2-s2.0-84871580311OAI: oai:DiVA.org:kth-109451DiVA: diva2:582317
FunderSwedish Research Council
QC 201301242013-01-042013-01-042013-02-04Bibliographically approved