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Controllable Optical, Electrical, and Morphologic Properties of 3,4‐Ethylenedioxythiophene Based Electrocopolymerization Films
Author(s) -
Gu Cheng,
Liu He,
Hu Dehua,
Zhang Wensi,
Lv Ying,
Lu Ping,
Lu Dan,
Ma Yuguang
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100194
Subject(s) - poly(3,4 ethylenedioxythiophene) , materials science , nanotechnology , polymer science , conductive polymer , composite material , polymer
This contribution presents a kind of novel and neutral network films based on EDOT formed by in situ electrocopolymerization (ECP). The ECP films which are neutral and colorless exhibit the conductivity of 0.2–0.5 S · cm −1 , W F of 4.79–5.20 eV, and RMS roughness of 3.51–5.26 nm. The electroluminescent devices where ECP films acted as hole‐transport layer (HTL) exhibit higher brightness, current density, efficiency (20–30% improvement), and stability than that of PEDOT:PSS HTL device. The ECP films also significantly benefit the stability of neighboring organic layer compared to PEDOT:PSS. This kind of new ECP films affords more opportunities to develop organic light‐emitting diodes (OLEDs) with high performances and stability.