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Title: Junction Plasmon-Induced Molecular Reorientation

Time and frequency dependent intensity variations in sequences of Raman spectra recorded at plasmonic junctions can be assigned to molecular reorientation. This is revealed through Raman trajectories recorded at a nanojunction formed between a silver AFM tip and a corrugated silver surface coated with biphenyl-4,4’-dithiol. Molecular motion is not observed when the tip is retracted and only surface enhancement is operative. In effect, junction plasmon induced molecular reorientation is tracked.
Authors:
; ;
Publication Date:
OSTI Identifier:
1108983
Report Number(s):
PNNL-SA-97929
48129; KC0301020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physical Chemistry Letters, 4(20):3435-3439
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Tip-Ehnhanced Raman; Surface-Enhanced Raman; Junction Plasmon; Intensity Variations; Reorientation; Environmental Molecular Sciences Laboratory