title: Stacks of nucleic acids as molecular wires: direct measurement of the intermolecular band dispersion in multilayer guanine assemblies.
abstract: The intermolecular band dispersion related to the highest occupied molecular orbital in highly ordered, hydrated multilayer films of the DNA base guanine has been measured using photon-energy-dependent ultraviolet photoelectron spectroscopy. A bandwidth of 331 ± 8 meV at room temperature and a small effective mass of about 1.11 times that of a free charge suggest a high intrinsic hole mobility along quasi-one-dimensional stacks formed perpendicular to layered, hydrogen-bound networks.
authors.affiliation: School of Materials Science & Research Center for Integrated Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan. friedl@jaist.ac.jp
authors.forename: Rainer
authors.initials: R
authors.lastname: Friedlein
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Antoine
authors.initials: A
authors.lastname: Fleurence
authors.forename: Fabio
authors.initials: F
authors.lastname: Bussolotti
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ogata
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Yamada-Takamura
mesh_terms: D002244:Carbon / Q000737:chemistry; D006147:Guanine / Q000737:chemistry*; D009696:Nucleic Acids / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D009696:Nucleic Acids; C009139:pyrolytic carbon; D014867:Water; D006147:Guanine; D002244:Carbon