Figure 2: POM images of films of F·T under crossed Nicols.
From: Macroscopic ordering of helical pores for arraying guest molecules noncentrosymmetrically
(a) LC film (∼10 μm thick) of F·T processed by slow cooling (–5 °C min−1) from an isotropic melt at 130 to 20 °C in the absence of a magnetic field. Scale bar, 100 μm. (b–d) LC films (∼10 μm thick) of F·T processed by drop casting of a dichloromethane solution on a glass substrate at 20 °C: in the absence (b) and presence of a 10-T magnetic field oriented parallel (c) and perpendicular (d) to the substrate plane. Scale bar, 500 μm. B, Magnetic field applied during the LC film-preparation process. N, Normal vector of the film surface.
