- 作者: 古玉全,嚴詠聖,黃泰翔,陳志欣,林建村,蔡啟堂
- 作者服務機構: Institute of Chemistry, Academia Sinica, 115 Nankang, Taipei, Taiwan, R.O.C.
- 中文摘要: A new series of 2,8-disubstituted dibenzofuran derivatives (dbf) have been synthesized via palladium-catalyzed coupling reactions of 2,8-diiododibenzofuran and diarylamines. These compounds are amorphous with a glass transition temperature ranging from 65 to 193 oC. The emission colors of the materials vary from blue to bluish green. Two types of double-layer organic light-emitting diodes (OLEDs) were fabricated using these compounds as hole-transporting/emitting layers and TPBI or Alq3 as an electron-transporting layer: (I) ITO/dbf/TPBI/Mg:Ag and (II) ITO/dbf/Alq3/Mg:Ag (TPBI = 1,3,5-tris(N-phenylbenzimidazol-2-yl)-benzene; Alq3 = tris(8-hydroxyquinoline)aluminum). In general, type I and type II devices have excitons confined in the hole-transporting and the electron-transporting layers, respectively. Some blue-emitting devices of type I have promising performance.
- 英文摘要: --
- 中文關鍵字: Dibenzofuran; Diarylamine; Organic electroluminescent derivatives.
- 英文關鍵字: --