SERS Characterization of Self-Assembled Monolayers Embedded on Plasmonic Nano-structure

ORAL

Abstract

We discuss Raman spectroscopic analysis of self-assembled monolayers embedded in two different types of nano-structures capable of sustaining localized surface plasmon-surface plasmon polariton coupling via nanoscale gaps and curved surface features. Both structures cosnsist of metal-molecule-metal (M$^3$) junctions which can also allow charge transport through the molecular bridges. Our results indicate different electromagnetic and charge transport characteristics as a function of the top metal-molecule chemical interaction. We also report direct correlations between charge transport states, SERS response and inelastic vibrational scattering in selected M$^3$ molecular electronic device junctions.

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Authors

  • Masato Maitani

    • Materials Science and Engineering, Penn State University (Penn State)

  • Douglas Ohlberg

    • Information \& Quantum Systems Laboratory, Hewlett-Packard Laboratories, Palo Alto, CA (Hewlett-Packard)

  • Haeyoung Yoon

    • Electrical Engineering (Ee), Penn State

  • Ping Kao

    • Ee, Penn State

  • Demirel Melik

    • Engineering Science and Mechanics, Penn State

  • Zhiyong Li

    • Hewlett-Packard

  • Duncan Stewart

    • Hewlett-Packard

  • Stanley Williams

    • Hewlett-Packard

  • Theresa Mayer

    • Ee, Penn State

  • David Allara

    • Chemistry, Penn State