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Inside Front Cover: Homeotropic Alignment of Columnar Liquid Crystals in Open Films by Means of Surface Nanopatterning (Adv. Mater. 6/2007)
Author(s) -
Gearba R. I.,
Anokhin D. V.,
Bondar A. I.,
Bras W.,
Jahr M.,
Lehmann M.,
Ivanov D. A.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200790022
Subject(s) - homeotropic alignment , materials science , liquid crystal , fabrication , diffraction , phthalocyanine , front cover , composite material , polytetrafluoroethylene , optics , nanotechnology , cover (algebra) , optoelectronics , medicine , mechanical engineering , alternative medicine , physics , engineering , pathology
Columnar liquid crystals (LCs) are found to spontaneously form homeotropically‐aligned films when deposited on surfaces fabricated via friction transfer of polytetrafluoroethylene. The inside cover schematically shows the film structure of a phthalocyanine derivative together with the corresponding X‐ray diffraction pattern (inset). The results, reported on p. 815 by Dmitri Ivanov and co‐workers, indicate that not only are the columns homeotropically oriented but also that they form a single monodomain of macroscopic size. These findings can have an important impact for fabrication of LC‐based organic solar cells.