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A new phase of a known discotic liquid crystal is observed at the interface with a rigid substrate. The structure of the substrate‐induced phase has been characterized by atomic force microscopy, specular X‐ray diffraction, and small‐angle and wide‐angle grazing incidence X‐ray diffraction. The substrate‐induced phase, which has a thickness of ∼30 nm and a tetragonal symmetry, differs notably from...
Here we address the problem of time and temperature instability of the electrical current related to parasitic doping effects in discotic liquid crystals (DLCs). We investigated the electrical transport in thin films of a phthalocyanine-based DLC in-dark and upon laser irradiation during long thermal cycles. Measuring the electrical transport between two electrodes we observed that in-dark the current...
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