SELF ASSEMBLY OF ORGANIC THIN FILMS

自组装技术正被用来吸附有机物 在黄金和氧化物表面涂覆薄膜。既有单体也有聚合物 使用组份来形成有机薄膜。单体 组件由烷基硫醇(金)和硅烷(氧化物)组成。 具有不同程度的氟化作用。对于硫醇来说， 装配上的碳氟化合物和碳氢化合物部分的长度， 得到的有机薄膜中的取向和成键 检查过了。最初，只包含一种类型的单体的薄膜 正在接受检查[例如，CF3(CF2)7(CH2)11SH]。在未来的薄膜中 由不同单体的混合物制成的也将被检验。 对于硅烷，表面覆盖度对链取向的影响 气相沉积的含氟化合物[例如CF3(CF2)7(CH2)2SiCl3]是 正在接受检查。目前正在研究的聚合体系是一种 含有三种不同浓度丙硫醇的二甲基硅氧烷 侧链。膜厚，有机体内的硫醇分布 薄膜，结合到金表面的硫醇基团的百分比，以及 正在检查未结合的硫醇基团的氧化情况。

Self assembly techniques are being used to adsorb organic thin films onto gold and oxide surfaces. Both monomeric and polymeric components are used to form the organic thin films. The monomeric assemblies are comprised of alkane thiols (gold) and silanes (oxides) with varying degrees of fluorination. For thiols, the effect of the length of the fluorocarbon and hydrocarbon sections on assembly, orientation, and bonding in the resulting organic thin film is being examined. Initially films containing only one type of monomer are being examined [e.g., CF3(CF2)7(CH2)11SH]. In the future thin films prepared from mixtures of different monomers will also be examined. For silanes, the effect of surface coverage on chain orientation for vapor deposited fluorinated compounds [e.g., CF3(CF2)7(CH2)2SiCl3] is being examined. The polymeric system currently being studied is a dimethyl siloxane with three different concentrations of propyl thiol side chains. Film thickness, thiol dis tribution within the organic thin film, percent of thiol groups bound to the gold surface, and oxidation of the unbound thiol groups are being examined.