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Tailored Highly Transparent Composite Hole‐Injection Layer Consisting of Pedot:PSS and SiO 2 Nanoparticles for Efficient Polymer Light‐Emitting Diodes
Author(s) -
Riedel Boris,
Shen Yuxin,
Hauss Julian,
Aichholz Markus,
Tang Xiaochen,
Lemmer Uli,
Gerken Martina
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201003490
Subject(s) - materials science , pedot:pss , oled , composite number , layer (electronics) , nanoparticle , polymer , nanocomposite , conductive polymer , diode , electrical conductor , optoelectronics , composite material , nanotechnology
Nanocomposite organic/inorganic compounds are used to fabricate thick, conductive and highly transparent layers, which are used as hole injection and transport layers in OLEDs. The composite layers consist of SiO 2 ‐nanoparticles and the polymer PEDOT:PSS. The filling fraction of PEDOT:PSS in these thick layers is reduced to 3.9%. OLEDs comprising such composite layers show an increased outcoupling efficiency.