Conjugated organic molecules on metal versus polymer electrodes: Demonstration of a key energy level alignment mechanism

N. Koch, Antoine Kahn, J. Ghijsen, J. J. Pireaux, Jeffrey Schwartz, R. L. Johnson, A. Elschner

Research output: Contribution to journalArticle

472 Scopus citations

Abstract

A study was performed on the conjugated organic (COM) molecules on metal versus polymer electrodes. A key energy level alignment mechanism was demonstrated between three electroactive COM and two high work function electrodes using ultraviolet photoemission spectroscopy. It was found that the hole injection barrier and the interfacial dipole barrier were significantly smaller for all the interfaces formed on the polymer as compared to the metal, inspite of the fact that both electrode surfaces had similar work functions.

Original languageEnglish (US)
Pages (from-to)70-72
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number1
DOIs
StatePublished - Jan 6 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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