Tetraaryl‐Substituted Benzo[1,2‐ b :4,5‐ b ′]dipyrroles: Synthesis, Properties, and Applications to Hole‐Injection Materials in OLED Devices | Zendy

Tsuji Hayato | Zendy; Yokoi Yuki | Zendy; Mitsui Chikahiko | Zendy; Ilies Laurean | Zendy; Sato Yoshiharu | Zendy; Nakamura Eiichi | Zendy

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Tetraaryl‐Substituted Benzo[1,2‐ b :4,5‐ b ′]dipyrroles: Synthesis, Properties, and Applications to Hole‐Injection Materials in OLED Devices

Author(s) -

Tsuji Hayato,

Yokoi Yuki,

Mitsui Chikahiko,

Ilies Laurean,

Sato Yoshiharu,

Nakamura Eiichi

Publication year - 2009

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.200800471

Subject(s) - oled , pedot:pss , diode , voltage , layer (electronics) , materials science , optoelectronics , zinc , chemistry , electrical engineering , nanotechnology , engineering , metallurgy

Yes, HIMs can! A series of 2,3,6,7‐tetraarylbenzo[1,2‐ b :4,5‐ b ′]dipyrroles (BDPs) were synthesized using zinc‐mediated double cyclization. Organic light‐emitting diodes consisting of BDP:PPB as a hole‐injection layer could be driven at a lower voltage than a PEDOT:PSS‐based device. Correlation of the IP values with the driving voltage shed some light on the mechanism of hole‐injection processes.

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