
Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals p. 511 - 518 (2001)
Update date:2022-08-04
Topics:
Contoret, Adam
Farrar, Simon
Jackson, Perregrin
Kelly, Stephen M.
Khan, Sultan
Nicholls, Edward
Oneill, Mary
Richards, Gary
Electroluminescence with a polarisation ratio of 12:1 from a uniformly aligned nematic network is reported. Diene photo-active end-groups were used, which polymerise by a selective cyclisation reaction. Surface alignment was achieved for the first time using a doped polymer photoalignment layer, oriented by exposure to polarised UV light. Threshold voltages between 2 V and 8 V were found and a brightness of 90 cd m-2 was obtained. Both the PL and EL intensities were higher after photochemical crosslinking.
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