Liquid crytals (LCs) are probably the most exciting state of matter. They attract scientists across disciplines such as chemistry, physics, materials science, and engineering—theorists and experimentalists alike. These days, you can buy quite affordable LCD TV sets around the corner, but that's just one of the many things liquid crystals can do. The selection of recent research articles presented below illustrates the broad interest in this area of soft condensed matter.
J. W. Goodby, P. J. Collings, T. Kato, C. Tschierske, H. Gleeson,
Handbook of Liquid Crystals
2nd edition, Wiley-VCH, Weinheim, 2014.
Find all articles on liquid crystals in Wiley Online Library...
See the International Liquid Crystal Society's website.
A novel lyotropic liquid-crystal-based assembly strategy is developed for the first time to fabricate composite films of vanadium pentoxide nanobelts and graphene oxide sheets with highly oriented layered structures. The resulting films manifest high electrical conductivity, good mechanical stability, and excellent flexibility, which allow them to be utilized as high performance electrodes in flexible energy storage devices.
Haiqing Liu, Yanping Tang, Chi Wang, Zhixiao Xu, Chongqing Yang, Tao Huang, Fan Zhang, Dongqing Wu, Xinliang Feng
Adv. Funct. Mater., February 15, 2017, DOI: 10.1002/adfm.201606269. Read article
Finding fault: The Kibble–Zurek scaling for defect formation is confirmed for a nematic liquid crystal system, where the transition from a uniform state to a defect state was achieved by electric field application. A scaling exponent of α=1/2 was obtained for different materials and independent of temperature.
Nicholas Fowler, Dr Ingo Dierking
ChemPhysChem, February 13, 2017, DOI: 10.1002/cphc.201700023. Read article
A controllable sol–gel strategy toward 2D silica composites: Based on the unique structure and properties of azoimidazolium combining from the imidazolium and the azobenzene unit, a light, thermal, substrate, and mechanical control of the orderliness and its anisotropy of 2D silica lamellar composites are achieved. A method to fabricate Au nanoparticles wrapped inside 2D silica layer is also derived.
Changxu Lin, Mengchun Xu, Wei Zhang, Long Yang, Zheng Xiang, Jinjian Hong, Xiangyang Liu
Adv. Mater. Interfaces, February 08, 2017, DOI: 10.1002/admi.201601249. Read article
Perfectly black in any viewing angle: An optically isotropic antiferroelectric liquid crystal display mode is realized by using ternary bent-core liquid crystal mixtures, forming a polar antiferroelectric tilted smectic phase. The newly developed mixtures show an ideal tilt of 45°, permitting perfect black in the transformed, electric-field OFF state, and switch under an applied electric field from below room temperature to 100 °C.
Leah Bergquist, Cuiyu Zhang, Roberta R. Ribeiro de Almeida, Brittany Pellegrene, Miroslaw Salamonczyk, Matthew Kim, Jung-Im Hwang, Kyeong-Jin Kim, Joun-Ho Lee, Antal Jákli, Torsten Hegmann
ChemistryOpen, February 07, 2017, DOI: 10.1002/open.201600138. Read article
Flattening: Despite the presence of four ester substituents, the intramolecular Scholl reaction of tetraethyl helicene-5,6,9,10-tetracarboxylate leads in fair yield to a moderately electron-deficient benzoperylene diimide with a remarkably stable mesophase.
Marília Gabriela Belarmino Cabral, Deise Maria Pereira de Oliveira Santos, Rodrigo Cristiano, Hugo Gallardo, Ahmed Bentaleb, Elizabeth A. Hillard, Fabien Durola, Harald Bock
ChemPlusChem, December 28, 2016, DOI: 10.1002/cplu.201600566. Read article
Beyond hydrogen bonding: Amphiphilic cyclodextrin (CD)-based liquid crystals have been synthesized that bear O-acetylated oligoethylene glycol chains at the secondary face and thioalkyl groups at the primary face. These compounds self-assemble via dipole–dipole interactions to form highly ordered smectic liquid crystal phases with useful properties.
Pier-Luc Champagne, David Ester, Sandra Ward, Vance E. Williams, Chang-Chun Ling
ChemPlusChem, December 14, 2016, DOI: 10.1002/cplu.201600556. Read article