Effects of aluminum cathodes prepared by ion-beam-assisted deposition in organic light-emitting devices

Soon Moon Jeong, Won Hoi Koo, Sang Hun Choi, Sung Jin Jo, Hong Koo Baik, Se Jong Lee, Kie Moon Song

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The effects of aluminum cathodes, fabricated by ion-beam-assisted deposition (IBAD), in organic light-emitting devices were investigated. The highly stable organic electroluminescent devices based on spin-coated soluble phenyl-substituted poly-p-phenylene-vinylene (Ph-PPV) thin films were used for the analysis. It was found that a dense Al cathode inhibited the permeation of water and oxygen into Ph-PPV film by suppressing pinhole defects. It was also found that IBAD process generates damage to polymer due to ion beam bombardment, which results in lower quantum efficiency at low voltage.

Original languageEnglish
Pages (from-to)1051-1053
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number6
DOIs
Publication statusPublished - 2004 Aug 9

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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