Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 52, Issue 34, Pages 8810-8827Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201300371
Keywords
liquid crystals; materials chemistry; self-assembly; semiconductors
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Funding
- Deutsche Forschungsgemeinschaft [Ze 230/19]
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While the unique optical properties of liquid crystals (LCs) are already well exploited for flat-panel displays, their intrinsic ability to self-organize into ordered mesophases, which are intermediate states between crystal and liquid, gives rise to a broad variety of additional applications. The high degree of molecular order, the possibility for large scale orientation, and the structural motif of the aromatic subunits recommend liquid-crystalline materials as organic semiconductors, which are solvent-processable and can easily be deposited on a substrate. The anisotropy of liquid crystals can further cause a stimuli-responsive macroscopic shape change of cross-linked polymer networks, which act as reversibly contracting artificial muscles. After illustrating the concept of liquid-crystalline order in this Review, emphasis will be placed on synthetic strategies for novel classes of LC materials, and the design and fabrication of active devices.
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