Polarization at the gold/pentacene interface

F. Amy, C. Chan, Antoine Kahn

Research output: Contribution to journalArticlepeer-review

222 Scopus citations

Abstract

Direct and inverse photoemission spectroscopy are used to investigate the electronic polarization P = P+ + P- induced by the pentacene anion and cation at the Au/pentacene interface. Based on the spectroscopic measurements and on previously published calculations, we determine that the total polarization at the metal interface is approximately 0.67 eV larger than at the surface of the pentacene film, leading to a corresponding decrease of the interface transport gap. This reduced interface gap leads to hole and electron injection barriers of 0.47 eV and 1.17 eV, respectively.

Original languageEnglish (US)
Pages (from-to)85-91
Number of pages7
JournalOrganic Electronics
Volume6
Issue number2
DOIs
StatePublished - Apr 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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