Surface raman spectroscopy of chemistry at the tris(8-hydroxyquinoline) aluminum/Ca interface

Robert J. Davis, Jeanne E Pemberton

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Abstract

Surface Raman spectroscopy in ultrahigh vacuum is used to interrogate interfaces formed between tris(8- hydroxyquinoline) aluminum (Alq3) and vapor-deposited Ca. Vapor deposition of Ca onto Alq3 films results in the appearance of new vibrational modes consistent with the formation of a Ca-Alq3 adduct in which Ca is bound through the O of Alq3. In addition, the graphitic carbon is observed to form with the deposition of Ca onto Alq3 films. The frequency and relative peak height ratios of graphitic D-band and G-band observed are consistent with more disordered sp3-type carbon forming upon partial decomposition of the organic film.

Original languageEnglish (US)
Pages (from-to)4397-4402
Number of pages6
JournalJournal of Physical Chemistry A
Volume113
Issue number16
DOIs
Publication statusPublished - Apr 23 2009

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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