Relationship between indium tin oxide surface treatment and hole injection in C60 modified devices

Sung Hyun Kim, Jyongsik Jang, Jun Yeob Lee

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37 Scopus citations

Abstract

The effect of indium tin oxide (ITO) surface treatment on hole injection in organic light-emitting diode with C60 as a buffer layer on ITO was studied. Double surface dipole layer was induced on oxygen plasma treated ITO surface, while no dipole formation was observed on ITO without surface treatment. Interfacial energy barrier between ITO and hole transport layer was reduced by 0.4 eV by C60 modification on oxygen plasma treated ITO surface, while there was no change of interfacial energy barrier by C60 on ITO without surface treatment.

Original languageEnglish
Article number253501
JournalApplied Physics Letters
Volume89
Issue number25
DOIs
StatePublished - 2006
Externally publishedYes

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