title: Highly ordered assembly of single-domain dichloropentacene over large areas on vicinal gold surfaces.
abstract: Defining pathways to assemble long-range-ordered 2D nanostructures of specifically designed organic molecules is required in order to optimize the performance of organic thin-film electronic devices. We report on the rapid fabrication of a nearly perfect self-assembled monolayer (SAM) composed of a single-domain 6,13-dichloropentacene (DCP) brick-wall pattern on Au(788). Scanning tunneling microscopy (STM) results show the well-ordered DCP SAM extends over hundreds of nanometers. Combining STM results with insights from density functional theory, we propose that a combination of unique intermolecular and molecule-step interactions drives the DCP SAM formation.
authors.affiliation: Department of Physics and Materials Science Program, University of New Hampshire, Durham, NH 03824, USA. jun.wang@unh.edu
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Irvinder
authors.initials: I
authors.lastname: Kaur
authors.forename: Bogdan
authors.initials: B
authors.lastname: Diaconescu
authors.forename: Jian-Ming
authors.initials: JM
authors.lastname: Tang
authors.forename: Glen P
authors.initials: GP
authors.lastname: Miller
authors.forename: Karsten
authors.initials: K
authors.lastname: Pohl
mesh_terms: D000327:Adsorption; D003460:Crystallization / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D009279:Naphthacenes / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D009279:Naphthacenes; D006046:Gold; C523499:pentacene