原子力显微镜针尖诱导云母表面吸附的十一醇薄膜的可控重排。

Controlled rearrangement of adsorbed undecanol films on mica surfaces induced by an atomic force microscopy tip.

作者信息

Wang Li, Wang Erkang

机构信息

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.

出版信息

Langmuir. 2004 Mar 30;20(7):2677-82. doi: 10.1021/la0354842.

DOI:10.1021/la0354842

PMID:15835136

Abstract

An undecanol film adsorbed on a mica surface was found to rearrange and spread in a position-controlled way induced by a tapping mode atomic force microscopy (AFM) probe. AFM images of varying scanning times showed that before forming an ordered monolayer the undecanol molecules were adsorbed on the mica surface in the disordered and disorganized status. With the proceeding of scanning, these undecanol molecules gradually formed an ordered and flat film. Such behavior was caused by the formation of a stable film and had never been reported for other alcohols.

摘要

研究发现，吸附在云母表面的十一醇薄膜会在轻敲模式原子力显微镜（AFM）探针诱导下以位置可控的方式重新排列并铺展。不同扫描时间的AFM图像显示，在形成有序单分子层之前，十一醇分子以无序和杂乱的状态吸附在云母表面。随着扫描的进行，这些十一醇分子逐渐形成有序且平整的薄膜。这种行为是由稳定薄膜的形成引起的，其他醇类尚未有过此类报道。