Blue-Light-Emitting Organic Electroluminescent Devices with Oxadiazole Dimer Dyes as an Emitter

Yuji Hamada, Chihaya Adachi, Tetsuo Tsutsui, Shogo Saito

Research output: Contribution to journalArticle

274 Citations (Scopus)

Abstract

Multilayer thin-film electroluminescent devices with blue emission color have been fabricated using new oxadiazole dimer dyes for both emission and electron transport layers. Emission characteristics of three types of cells, SH-A: ITO/HTL/EML/MgAg, SH-B: ITO/EML/ETL/MgAg and DH: ITO/HTL/EML/ETL/MgAg, in which ITO, HTL, EML, ETL and MgAg represent indium-tin-oxide cathode, hole transport layer, emission layer, electron transport layer and magnesium-silver alloy anode, respectively, are compared. Luminances exceeding 1000 cd/m2 are observed and emission peaks are located at 470-480 nm. Among the three cells, the DH cell shows the best performance. The DH cell is stable for more than 40-day storage and can also be continuously driven for more than one hour at room temperature and 7 h at liquid nitrogen temperature.

Original languageEnglish
Pages (from-to)1812-1816
Number of pages5
JournalJapanese Journal of Applied Physics
Volume31
Issue number6 R
DOIs
Publication statusPublished - 1992

Fingerprint

Luminescent devices
Dimers
emitters
ITO (semiconductors)
Dyes
dyes
dimers
Silver alloys
Multilayer films
Liquid nitrogen
Magnesium alloys
Tin oxides
Indium
Luminance
Anodes
cells
Cathodes
Color
Thin films
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Blue-Light-Emitting Organic Electroluminescent Devices with Oxadiazole Dimer Dyes as an Emitter. / Hamada, Yuji; Adachi, Chihaya; Tsutsui, Tetsuo; Saito, Shogo.

In: Japanese Journal of Applied Physics, Vol. 31, No. 6 R, 1992, p. 1812-1816.

Research output: Contribution to journalArticle

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