PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
False-colour scanning tunnelling microscope (STM) image of a thin film of di-block co-polymers coated on a metal surface. A co-polymer is an alloy of more than one polymer. A STM provides an image of sample surfaces, allowing superficial atoms to be identified. Basically, the image is formed by moving a fine point just above the sample surface & electronically recording the height of the point as it scans. This is possible due to tunnelling, whereby an exchange of electrons occurs when the electron clouds surrounding superficial nuclei in the STM's point & sample surface overlap as they approach each other.
Model release not required. Property release not required.