Ontology highlight
ABSTRACT:
SUBMITTER: Kwasnieski DT
PROVIDER: S-EPMC4511604 | biostudies-literature | 2015 Aug
REPOSITORIES: biostudies-literature
Kwasnieski Daniel T DT Wang Hao H Schultz Zachary D ZD
Chemical science 20150801 8
Vibrational Stark shifts observed from mercaptoalkyl monolayers on surface enhanced Raman (SERS) active materials are reported to provide a direct measurement of the local electric field around plasmonic nanostructures. Adlayers of CN<sup>-</sup>, p-mercaptobenzonitrile, and n-mercaptobutylnitrile were adsorbed to a heterogeneous nanostructured Ag surface. The frequency of the CN moiety was observed to shift in a correlated fashion with the SERS intensity. These shifts are attributed to a vibrat ...[more]