Journal Article

PHPPUBDB-12136

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Homeotropic Alignment of a Discotic Liquid Crystal Induced by a Sacrificial Layer

Pouzet, E. ; De Cupere, V. ; Heintz, C. ; Andreasen, J. W. ; Breiby, D. W. ; Nielsen, M. M. ; Viville, P. ; Lazzaroni, R. ; Gbabode, G. ; Geerts, Y. H. (Corresponding author) ; DESY

2009
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/jp9035343

Abstract: A convenient method to induce face-on orientation of an alkoxy phtalocyanine discotic mesogen is described.The alignment is imposed by the confinement of the discotic thin films with a top sacrificial polymer layerthat is easily removed by washing with a selective solvent, after thermal annealing. Thin films have beencharacterized by optical and atomic force microscopy, UV-Vis absorption spectroscopy, and grazing incidencewide angle X-ray scattering. The data converge in showing the central role of the sacrificial layer in promotingalignment with the planar molecules orienting parallel to the substrate in an essentially homeotropic arrangementover large lateral length scales and the persistence of this desirable alignment after removal of the layer

Note: © American Chemical Society; Post referee fulltext in progress; Embargo 12 months from publication

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Contributing Institute(s):

1. Experiments with synchrotron radiation (HASYLAB(-2012))

Research Program(s):

1. DORIS Beamline BW2 (POF1-550) (POF1-550)
2. FS-Proposal: II-20060221 EC (II-20060221-EC) (II-20060221-EC)

Experiment(s):

1. DORIS Beamline BW2 (DORIS III)

Appears in the scientific report 2009

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Database coverage:
JCR ; No Author Disambiguation ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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