A Facile Method To Prepare Macroscopically Oriented Mesostructured Silica Film: Controlling The Orientation Of Mesochannels In Multilayer Films By Airrnflow

摘要

Host-guest chemistry is considered to be a facile approach to designing new functional molecules or devices for different purposes. As an ideal candidate for host, mesoporous silica materials with macroscopically oriented hexagonally packed tabular mesochannels have received much attention in nanostructured host/guest composites. In these systems, a mesostructured silica film with the orientation controlled in three dimensions has been anticipated to have great potential in the design of devices in optics, microelectronics, etc. Several methods have been advanced to fabricate oriented mesoporous films. However, the mesochannel orientation was solely controlled in a single direction over the whole film (in other words, the orientation of mesochannels was controlled in two dimensions).