Surface-enhanced resonance raman-spectroscopy of sulfonated copper phthalocyanine at a silver electrode

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Abstract

The Raman spectrum of sulphonated copper phthalocyanine on a silver electrode surface is reported for four excitation wavelengths in the Q-band region at voltages between +0.6 and -0.6 V (vs SCE). SERS activity is observed and the bonding and orientation of the surface species are voltage dependent and are inferred from a vibrational analysis. Maximum scattering intensity is observed at -0.2 V (vs SCE) and is attributed to molecules bonded edge-on to the surface through SO3- groups.
Original languageEnglish
Pages (from-to)375-380
Number of pages5
JournalJournal of Raman Spectroscopy
Volume20
Issue number6
DOIs
Publication statusPublished - Jun 1989

Keywords

  • surface-enhanced resonance
  • raman-spectroscopy
  • sulfonated copper phthalocyanine
  • silver
  • electrodes

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