Study Morphology Evolution in self-assembled Block Copolymer Thin Films in virtue of Carbon Nanotube
As a bottom-up approach to nanostructures for nanofabrication, self-assembled block copolymer thin films have received much attention not only thanks to the scale of the microdomains but also due to the convenient shape tunability of microdomains. Control over microdomain spatial and orientational order is paramount to realize applications of self-assembled block copolymer thin films in nanotechnologies. In order to study systemically the morphology evolution in self-assembled block copolymer thin films induced by solution annealing, a simple relocation technique for atomic force microscopy, which takes advantage of carbon nanotube, is used for investigating repeatedly the imaging of some specific species on the whole substrate with a high relocation accuracy of tens of nanometers. As an example of the application of this technique, TappingMode AFM Ex-situ study of the morphology transition induced by solvent treatment in a triblock copolymer thin film has been carried out. Moreover, by pinning down the vitrification-to-equilibrium transition induced by solvent annealing at different stages, a variety of self-assembled triblock copolymer templates with high regular nanostructures such as hexagonally ordered cylinders or lamella packed in highly order state have been realized simply and at low cost based on a single block copolymer.
Carbon nanotube Self-assembled AFM Block copolymer
曹永智 董申 闫永达 孙涛 梁迎春
哈尔滨工业大学机电学院精密工程研究所 哈尔滨 150001
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）