| AVS 57th International Symposium & Exhibition | |
| Surface Science | Tuesday Sessions |
| Session SS2-TuM |
| Session: | Aromatic Molecular Films |
| Presenter: | D.Z. Sun, University of California at Riverside |
| Authors: | D.Z. Sun, University of California at Riverside D.H. Kim, University of California at Riverside Z.H. Cheng, University of California at Riverside Y.M. Zhu, University of California at Riverside W.H. Lu, University of California at Riverside M. Luo, University of California at Riverside S. Hong, University of Central Florida T.S. Rahman, University of Central Florida L. Bartels, University of California at Riverside |
| Correspondent: | Click to Email |
Intermolecular force plays an important role in self-assembly and surface pattern formation. Unsubstituted arenes, such as anthracene, attach to a metallic substrate predominantly through van der Waals interaction leading to substrate binding that is less sensitive to the precise adsorption configuration and allows a range of ordered surface patterns. In contrast, substitution of the arenes can lead to strong intermolecular forces within the film and amplified substituent-substrate interactions that strictly define the adsorption configuration and film pattern. In this contribution we present the pattern formation of anthracene on Cu(111) and show how addition of thiol and carbonyl groups can vary the resultant surface pattern. For each case we investigate the chemical and physical interaction underlying the pattern formation using a combination of variable temperature scanning tunneling microscopy (STM) imaging and density functional theory (DFT) simulation.