Formation of MgAu alloy cathode by photolithography and its application to organic light-emitting diodes and organic field effect transistors

Takahito Oyamada, Hiroyuki Sasabe, Chihaya Adachi

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)

抄録

To make an efficient electron injection electrode by photolithography, we studied MgAu alloy electrodes, which have a low work function and high resistance to humidity and oxygen. The measured work function of MgAu alloy thin film was 3.7 eV, which is comparable with that of a pure Mg layer and ∼0.8 eV lower than that of a pure Au layer. This low work function was maintained even after photolithography, suggesting excellent stability for solvent treatment. Investigating organic field-effect transistor (OFET) characteristics when MgAu alloy comb type source and drain electrodes were used, we successfully obtained n-type FET operation. Furthermore, organic light-emitting diodes (OLEDs) demonstrated the efficient electron injection characteristics of the MgAu alloy cathode, which were similar to those of the conventional MgAg cathode.

本文言語英語
ページ(範囲)37-42
ページ数6
ジャーナルElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
152
1
DOI
出版ステータス出版済み - 7 15 2005
外部発表はい

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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