title: Electronic structure of the buried interface between an organic semiconductor, N,N'-bis(3-methylphenyl)-N,N'-diphenylbenzidine (TPD), and metal surfaces.
abstract: The electronic structures of buried interfaces between an organic semiconductor, N,N'-bis(3-methylphenyl)-N,N'-diphenylbenzidine (TPD) and metal surfaces of Au, Ag, Al and Ca were examined by the new experimental method that we have developed recently. In this method the energy levels at the organic/metal interface can be examined without changing the film thickness and related physical parameters e.g., the vacuum levels of the sample in contrast to the widely-used thickness-dependent photoemission experiments. The results were discussed in view of large interfacial dipole moment of the TPD and metal (Au and Ag) contacts.
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji Kyoto 611-0011, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yoshida
authors.forename: Eisuke
authors.initials: E
authors.lastname: Ito
authors.forename: Masahiko
authors.initials: M
authors.lastname: Hara
authors.forename: Naoki
authors.initials: N
authors.lastname: Sato
mesh_terms: D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D009930:Organic Chemicals / Q000737:chemistry*; D010316:Particle Size; D012666:Semiconductors; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D013499:Surface Properties
chemical_list: C512555:1-(phenyl)-1,1,1-tris(4-mercaptomethylphenyl)methane; D008670:Metals; D009930:Organic Chemicals; D013438:Sulfhydryl Compounds