Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP206/1, Boulevard du Triomphe, 1050 Brussels, Belgium.
Adv Mater. 2012 Feb 2;24(5):658-62. doi: 10.1002/adma.201103739. Epub 2011 Dec 15.
A new phase of a known discotic liquid crystal is observed at the interface with a rigid substrate. The structure of the substrate-induced phase has been characterized by atomic force microscopy, specular X-ray diffraction, and small-angle and wide-angle grazing incidence X-ray diffraction. The substrate-induced phase, which has a thickness of ∼30 nm and a tetragonal symmetry, differs notably from the bulk phase. The occurrence of such phase casts a new light on alignment of discotic liquid crystals.
在与刚性基底的界面处观察到已知盘状液晶的新相。通过原子力显微镜、镜面 X 射线衍射以及小角和广角掠入射 X 射线衍射对基底诱导相的结构进行了表征。该基底诱导相具有约 30nm 的厚度和四方对称性，与体相明显不同。这种相的出现为盘状液晶的取向提供了新的视角。
