Abstract
We report an investigation on the adsorption of 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) molecules on Si(111)-(2√3 × 2√3)R30°-Sn surfaces using scanning tunneling microscopy (STM) under ultrahigh vacuum. A novel PTCDA structure, consisting of quasi-one-dimensional molecular chains, is obtained at a submonolayer range. A fine balance between intermolecular and molecule−substrate interactions favors and stabilizes the formation of this molecular structure, which extends homogeneously, creating a highly ordered overlayer with regularly spaced rows in a commensurate (4√3 × 2√3)R30° PTCDA reconstruction. The visualization of PTCDA molecular orbitals in bias-dependent high resolution STM images allows for identifying the bonding configuration and the molecular adsorption site.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
