The influence of the tip modification on the contrast of a Scanning Tunnelling Microscopy (STM)image is investigated. This innovative technique makes it possible to identify the molecular organisation inside self-assembled monolayers (SAMs). Moreover, the observed contrast variations, between two different tip modifications, highlight functional groups position and orientation. In situ treatment of modified tips allows to switch contrast enhancement on and off.
|Number of pages||5|
|Journal||Physical and Chemical News|
|Publication status||Published - 2007|
- fatty acids
- scanning tunnelling microscopy
- solid-liquid interfaces.