Get access
Advanced Materials

High order and submolecular imaging of end-capped quinquethiophene on Ag(111)


  • This project was supported by the BMBF (project 01 BM 205/2). One of us (E. U.) thanks the Fond der Chemischen Industrie for financial support.


Ultrathin films of functionalized oligomers with well-defined chain and conjugation lengths are of interest for organic electronic devices. Using the example of end-capped quinquethiophene vapor-deposited onto a Ag(111) surface, it is demonstrated that highly ordered monolayers of chemisorbed oligomers can be obtained in very large defect-free domains. LEED and STM (see Figure) studies provide information about the geometric parameters, molecular structure, and quality of the layers.

original image
Get access to the full text of this article