Zorn Matthias, Meuer Stefan, Tahir Muhammad Nawaz, Tremel Wolfgang, Char Kookheon, Zentel Rudolf
Institute for Organic Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, 55128 Mainz, Germany.
J Nanosci Nanotechnol. 2010 Oct;10(10):6845-9. doi: 10.1166/jnn.2010.2946.
A directed self assembly of anisotropic nanostructures offers a possibility to provide unique functional materials, which are e.g., important in optoelectronic devices. We use the liquid crystalline behavior of polymer functionalized TiO2 and ZnO nanorods to apply methods well known for low molecular liquid crystals to achieve oriented thin films. Convective forces in the meniscus on a structured substrate obtain thin layers of oriented nanoparticles with a ordering parameter of S = 0.7. As another method we present the orientation of polystyrene covered ZnO nanorods under an applied electric field. The method offers a perpendicular alignment of the rods to the surface.
各向异性纳米结构的定向自组装为提供独特的功能材料提供了一种可能性，这些功能材料例如在光电器件中很重要。我们利用聚合物功能化的TiO₂和ZnO纳米棒的液晶行为，应用低分子液晶熟知的方法来制备取向薄膜。结构化基底上弯月面中的对流力可获得有序参数S = 0.7的取向纳米颗粒薄层。作为另一种方法，我们展示了在施加电场下聚苯乙烯包覆的ZnO纳米棒的取向。该方法使纳米棒垂直于表面排列。
