Crystalline liquids: the blue phases
WebT1 - The liquid-crystalline blue phases. AU - Seideman, T. PY - 1990. Y1 - 1990. N2 - An introductory review of the cholesteric blue phases is presented. The emphasis is on the … WebBlue phases represent distinct liquid states of matter having a high viscosity, finite shear modulus, andBraggreflections in the visible spectrum. These properties arise from a …
Crystalline liquids: the blue phases
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WebMay 5, 2015 · The blue phase liquid crystal (BPLC) is a highly ordered liquid crystal (LC) phase found very close to the LC-isotropic transition. The BPLC has demonstrated potential in next-generation display and photonic technology due to its exceptional properties such as sub-millisecond response time and wide viewing angle. However, BPLC is stable in a ... WebJun 1, 2014 · Abstract. Liquid-crystalline polymers are materials of considerable scientific interest and technological value 1, 2, 3. An important subset of these materials exhibit rubber-like elasticity ...
WebFeb 19, 2024 · Abstract. Liquid crystalline cholesteric blue phases (BPs) continue to attract interest due to their fast response times and quasi-polarization-independent phase modulation capabilities. Various approaches have recently been proposed to control the crystal orientation of BPs on substrates; however, their basic orientation properties on … WebBlue phases epitomise the term liquid crystal, possessing three-dimensional crystalline ori-entational order whilst maintaining full fluidity. We describe some of their unique properties and the subtle balance between local order and topology that is …
WebMay 10, 2012 · Abstract. Surface pinning effect of the optically isotropic, blue phase liquid crystal (BPLC) has been studied. Polycrystalline, platelet, multi-domain topological defects without surface treatment have been transformed to uniform monodomain in rubbed surfaces of the cell. The operating voltage was reduced by 27%, owing to a dramatic … WebThe thermal stabilization of blue phases is a subject that has been of scientific and technological interest since their discovery. Meanwhile, carbonaceous nanomaterials …
WebApr 9, 2024 · In this study, 4-Biphenyle-4′-alkyloxybenzenamines were synthesized as a homologous series of liquid crystals based on the biphenyl moiety. Their mesomorphic and optical properties were examined for both pure and mixed components. Elemental analysis, NMR, and FT-IR spectroscopy were used to determine the molecular structures …
WebFeb 19, 2024 · Abstract. Liquid crystalline cholesteric blue phases (BPs) continue to attract interest due to their fast response times and quasi-polarization-independent … how to subtract arrays in pythonWebAug 28, 2013 · We employ Monte Carlo simulations in a specialized isothermal-isobaric and in the grand canonical ensemble to study structure formation in chiral liquid crystals as a function of molecular chirality. Our model potential consists of a simple Lennard-Jones potential, where the attractive contribution has been modified to represent the orientation … reading minster protestWebNov 3, 2010 · Blue phases are liquid crystals whose chiral (left- or right-handed) molecules tend to orient with an intrinsic twist in two spatial directions, leading to large-scale ‘frustration’ and thus formation of a fully 3D crystalline arrangement. ... with nematic colloids. 7,8 The nematic free energy is extended by a chiral term. 9 When a ... how to subtract base 2 numbersWebSep 7, 2024 · “Here we show a generalizable and manufacturing-friendly strategy to create structures with a high degree of perfection over large areas in films of liquids that form blue phase liquid crystals, which will enable the development of optical devices such displays,” said Paul Nealey, Brady W. Dougan Professor of Molecular Engineering and co-author … reading missed bin collectionWebOct 12, 2015 · Blue phases of liquid crystals (LCs) are characterized by a local director field that forms double-twisted cylinders, arranged into defect regions that are periodically repeated in space (1, 2).The symmetry properties of blue phases (BPs) have attracted considerable attention, as have their potential applications in a wide range of … how to subtract big numbers with zerosWebTheory of free energy of blue phase liquid crystals The free energy is described by the Laudan de Gennes equation consist of three parts: the short-range free energy density ... and Qij is the tensor order parameter field of liquid crystal to characterize all the orientational degrees. The tensor order parameter is defined as, 1 ij3 n G reading minster youtubeWebSelect search scope, currently: articles+ all catalog, articles, website, & more in one search; catalog books, media & more in the Stanford Libraries' collections; articles+ journal articles & other e-resources reading minster events