Atomic force and scanning tunneling microscopy of comb-like cholesteric liquid crystalline polymer LB filmsстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Bilayers of comb-like cholesteric liquid crystalline polymer (PChA-10) on silicon and graphite substrates are studied using AFM and STM. It is found that two kinds of two-dimensional molecular lattice can exist in this system. It is shown that Langmuir-Blodgett (LB) film perfectness depends on deposition pressure. The superiodicity observed in STM current images is consistent with the existence of charge density wave (CDW) on LB film surface.