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S. M. GUBAREV, A. M. DOBROVOL’SKYI, A. M. YEVSYUKOV, R. M. KRAVCHUK, I. M. PROTSENKO, and O. V. YAROSHCHUK
«Nanorelief of Surfaces of Polyimide Films Obliquely Treated by Plasma Beam»
169–176 (2009)

PACS numbers: 61.30.Hn, 68.35.Ct, 68.37.Ps, 68.47.Pe, 79.20.Rf, 81.16.Rf, 81.65.Cf

The relationship between the nanorelief of polyimide surfaces obliquely treated by the beam of accelerated plasma and the alignment of LC on these surfaces is investigated. As shown, the plasma treatment of the surface results in a change of its roughness in nanometre scale. The roughness in the direction of plasma-beam projection on the surface is different from that in the perpendicular direction. Clear correlation between the anisotropy of surface roughness and the direction of LC alignment is observed. This implies the important, possibly crucial, role of the topology factor in planar alignment of LC on the surfaces obliquely treated by plasma/ion beams.