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Blue Polarized Electroluminescence from a Liquid Crystalline Polyfluorene
Author(s) -
Grell Martin,
Knoll Wolfgang,
Lupo Donald,
Meisel Andreas,
Miteva Tzenka,
Neher Dieter,
Nothofer HeinzGeorg,
Scherf Ullrich,
Yasuda Akio
Publication year - 1999
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/(sici)1521-4095(199906)11:8<671::aid-adma671>3.0.co;2-e
Subject(s) - polyfluorene , materials science , electroluminescence , polyimide , liquid crystal , optoelectronics , layer (electronics) , polymer , electroluminescent display , composite material
Highly polarized electroluminescence from a liquid‐crystal polymer device , based on a branched polyfluorene with a branched side chain, is demonstrated here as a further step towards the use of organic electroluminescent (EL) devices as backlights in conventional liquid‐crystal displays. The modification of a polyimide (PI) for hole conduction by addition of a suitable filler at moderate concentration is reported and the performance of a device containing such a rubbed, hole‐conductor‐filled PI layer as the alignment layer is compared with that of a device with a PI‐only alignment layer.