Evidence for surface dipole modifications in In2O 3-based transparent conductors

S. P. Harvey, T. O. Mason, C. Körber, Y. Gassenbauer, A. Klein

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19 Citations (Scopus)

Abstract

Surface dipole modifications were identified for contamination-free In 2O3-based transparent conducting oxides by ultraviolet photoelectron spectroscopy on both thin film and bulk ceramic specimens. In particular, heating in air was found to result in an increase in ionization potential and work function. The formation of surface dipoles may be related to the unique structure (crystal, defect) of bixbyite-based materials. These findings have important ramifications for the tuning of work functions in In2O3-based transparent conductors.

Original languageEnglish
Article number252106
JournalApplied Physics Letters
Volume92
Issue number25
DOIs
Publication statusPublished - Jul 4 2008

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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