A two-dimensional molecular network of trimesic acid on Au(111) was visualized by in situ scanning tunneling microscopy with submolecular resolution. The supramolecular structures including an 'order to order' phase transition were constructed by precise potential-controlled adsorption based on adsorption-induced self-organization.

A coronene and iodine co-adsorbed adlayer on an Au(111) surface in which iodine atoms surrounded each coronene molecule was found by an in situ scanning tunneling microscopy (STM) study with electrochemical potential control.