HIGH-ORDER AND SUBMOLECULAR IMAGING OF END-CAPPED QUINQUETHIOPHENE ONAG(111)

Ultrathin films of functionalized oligomers with well-defined chain an d 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 o f chemisorbed oligomers can be obtained in very large defect-free doma ins LEED and STM (see Figure) studies provide information about the ge ometric parameters molecular structure, and quality of the layers.