Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 28, Pages 8886-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja802757w
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Temperature range a photoconducting smectic. A liquid crystal having bicontinuous arrays of densely packed donor and acceptors units. In contrast, when modified with only paraffinic wedges(1(Lipo)), the dyad forms a smectic A liquid crystalline mesophase, which however is poorly conductive. As indicated by an absorption spectral feature along with a synchron radiation small-angle X-ray scattering profile. 1(Lipo) in the lamellar structure does not adopt a uniform head/tail orientation. Such defective donor and acceptor arrays likely contain a large number of trapping sites, leading to short-lived charge carriers, as observed by a flash photolysis time-resolved microwave conductivity study.
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