| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2011: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
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| Outline of Final Research Achievements |
Recently, we reported a new thermal transition phenomenon in liquid crystal (LC) cells using a specific combination of LC- and surface-coating materials, that is, nematic LC CCN-47 and perfluoropolymer CYTOP. This phenomenon (now known as "discontinuous anchoring transition"), observed as an abrupt molecular orientation change between homeotropic and planar states by cooling or heating, was investigated by means of high-resolution differential scanning calorimetry (DSC) and grazing-incidence x-ray diffraction (GI-XRD), as well as careful polarization microscopy. These experiments revealed; (1) different molecular orientations, homeotropic and planar at the surfaces, have different thermodynamic free energies; (2) the discontinuous anchoring transition occurs through the formation of quasismectic layers parallel to surfaces in the nematic phase. We also discussed the possible applications utilizing this phenomenon such as rewritable displays driven by light-induced heat.
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