Design of multilayer structure for UV organic light-emitting diodes based on 2-(2-naphthyl)-9,9′-spirobifluorene

Hideki Etori, Takeshi Yasuda, Xiu Lan Jin, Katsuhiko Fujita, Shuntaro Mataka, Tetsuo Tsutsui

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


With the goal of obtaining UV organic light-emitting diodes (UV OLEDs), the device architecture of OLEDs containing a novel UV-emitting material, 2-(2-naphthyl)-9,9′-spirobifiuorene (2SBFN), has been studied. UV emission from the 2SBFN layer was attained by employing the multilayer structure where poly(3,4-ethylene dioxythiophene) doped with poly-(styrene sulfonate) (PEDOT:PSS) was used as a hole-injection layer (HIL), while using conventional materials such as 4,4′,4″-tris[N-(3-methylphenyl)-N-phenylamino] triphenylamine (mMTDATA) and copper phthalocyanine (CuPc) as HIL resulted in the emission from a material other than 2SBFN. These results suggest that the appropriate choice of HIL material is of critical importance in obtaining UV OLEDs.

Original languageEnglish
Pages (from-to)5071-5075
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number8 A
Publication statusPublished - Aug 6 2007

All Science Journal Classification (ASJC) codes

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


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