Molecular dopant determines the structure of a physisorbed self-assembled molecular network
Roelof Steeno, Andrea Minoia, M.C. Gimenez-Lopez, Matthew O. Blunt, Neil R. Champness, Roberto Lazzaroni, Kunal S. Mali, Steven De Feyter
Abstract
A small percentage of an impurity was shown, via scanning tunneling microscopy, to drastically change the on-surface self-assembly behavior of an aromatic tetracarboxylic acid, by initiating the nucleation and growth of a different polymorph. Molecular modelling simulations were used to shed further light onto the dopant-controlled assembly behaviour.
Topics & Concepts
DopantNucleationAdsorptionChemical physicsImpurityChemistryMolecular conformationSelf-assemblyNanotechnologyMaterials scienceCrystallographyMoleculeDopingPhysical chemistryOrganic chemistryOptoelectronicsSurface Chemistry and CatalysisMolecular Junctions and NanostructuresQuantum Dots Synthesis And Properties