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Synthesis and electroluminescent properties of quaterphenyl and sexiphenyl containing copolymers
Author(s) -
Keegstra Menno A.,
Cimrová Vera,
Neher Dieter,
Scherf Ullrich
Publication year - 1996
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1996.021970815
Subject(s) - copolymer , electroluminescence , materials science , polymer chemistry , photoluminescence , indium tin oxide , photochemistry , polymer , chemistry , composite material , optoelectronics , layer (electronics)
Copolymers containing quaterphenyl and sexiphenyl units in which the solubility was introduced by spacer groups were prepared and investigated. Photoluminescence of the compounds appears in the blue region of the visible light. Blue light emitting electroluminescent devices based on the blends of the quaterphenyl copolymer and poly( N ‐vinylcarbazole) with indium‐tin oxide(ITO) and aluminium as hole‐ and electron‐injecting electrodes, respectively, were fabricated. Further, the quaterphenyl copolymer was found to be nematic between 236 and 244°C.