Regensburg 2002 – scientific programme
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SYOH: Organische Halbleiter
SYOH 7: Poster
SYOH 7.45: Poster
Monday, March 11, 2002, 18:00–21:00, C
Monodomain alignment of Polyfluorene using ultrathin photoaddressable alignment layer — •XH . Yang1, S. Lucht1, A. Zen1, N. Mechau1, U. Scherf2, R. Hagen3, T. Bieringer3, S. Kostrominec 3, and D. Neher1 — 1University of Potsdam, Institute of Physics, Am Neuen Palais 10, D-14469 Potsdam — 2University of Potsdam, Institute of Chemical Physics and Theoretical Chemistry, Karl-Liebknecht-str.24-25, D-14469, Golm — 3Bayer AG, D-51368 Leverkusen, Germany
Monodomain alignment of liquid-crystalline Polyfluorene (PF) has been achieved by using photoaddressable polymer (PAP)as the alignment layer. (1) We report here that alignment ability of PAP layer was not compromised by decreasing the thickness of alignment layer to 10nm. For the purpose of ultilizing in polarization LED, certain amount of hole transport materials was blended with PAP layer. The effects of hole transport molecule on the anistropy of absorption of PAP and photoluminescence (PL) of PF were also discussed. Reference: (1) D.Sainova, A. Zen, H.G.Nothofer, et al Advanced Functional Materials, 2002, 12, 1-9