LB膜和SA膜中的分子取向研究

LB(Langmuir-Blodgett）膜技术是一项有近70多年历史的技术，由于技术条件的限制，发展一直较慢，近10年来，随着纳米技术的飞速发展，日益显示出LB膜技术在纳米材料应用方面的优越性。LB膜分子间具有规整的排列和各向异性，可以实现能量转移及电子转移。通过LB膜技术可以控制分子尺度；设计成膜技术可以组装分子可以组装分子取向，进行有序分子组装，得到大面积单分子层。SA（Self-Assembly）膜技术提供了在分子水平上构造理想界面的方便手段，由于得到的膜具有传统LB膜的均一性和稳定性，近年来也成为研究的热点。

Study on Molecular Orientation in LB Film and SA Film

LB (Langmuir-Blodgett) film technique, which has a history of about 70 years, has been developed very slowly because of restrictions of technical conditions. Along with the rapid development of nano-technique in recent ten years, LB film technique demonstrates its superiority in application of nano-materials. There is regular arrangement and anisotropic property among molecules of LB film by which can realize the energy transfer and electron transfer. LB film technique can be used to control the size of molecule, and the design of film forming technique can be used to assemble the molecule orientation and make ordering molecule assembly, getting the monolayer with large area. SA(Self-Assembly)film technique, which provides the convenient means for structuring ideal interface on molecule level, has become a hot spot of research because the obtained film possesses the homogeneity and stability of traditional LB film.