Organic Electroluminescent Bis(diarylamino) Dibenzofuran Derivatives | Zendy

Ku YuChan | Zendy; Yen YungSheng | Zendy; Huang TaiHsiang | Zendy; Chen ChihHsin | Zendy; Lin Jiann T. | Zendy; Tsai ChiiTang | Zendy

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Organic Electroluminescent Bis(diarylamino) Dibenzofuran Derivatives

Author(s) -

Ku YuChan,

Yen YungSheng,

Huang TaiHsiang,

Chen ChihHsin,

Lin Jiann T.,

Tsai ChiiTang

Publication year - 2006

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.200600176

Subject(s) - dibenzofuran , chemistry , oled , electroluminescence , photochemistry , benzene , layer (electronics) , tris , light emitting diode , optoelectronics , organic chemistry , materials science , biochemistry

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 °C. 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 Alq 3 as an electron‐transporting layer: (I) ITO/ dbf /TPBI/Mg:Ag and (II) ITO/ dbf /Alq 3 /Mg:Ag (TPBI = 1,3,5‐tris( N ‐phenylbenzimidazol‐2‐yl)‐benzene; Alq 3 = 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.

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