A fluid self-assembly sphere phase (SP) of liquid crystal induced by chiral dopant is observed in a narrow temperature range between isotropic and blue phase or between isotropic and chiral nematic phase. The SP consists of three-dimensional twist spheres (3-DTSs) and disclinations among 3-DTSs. The temperature range of the SP has been broadened to more than 85 degrees C by stabilizing the disclinations with amorphous polymer chains. The electro-optical switching time of the polymer-stabilized SP is demonstrated in sub-millisecond with a low switching electric field of 4.4 V mu m(-1), which is of promising applications in displays, 3-D tunable photonic crystals, and phase modulators. (C) 2014 AIP Publishing LLC.
- BLUE-PHASE; BRAGG GRATINGS; LASER; WAVELENGTH
Zhu, J. L., Shui-Bin, N., Chen, C. P., Wu, D-Q., Song, X-L., Chen, C. Y., Lu, J-G., Su, Y., & Shieh, H-P. (2014). Chiral-induced self-assembly sphere phase liquid crystal with fast switching time. Applied Physics Letters, . https://doi.org/10.1063/1.4867358