title: Study of the electronic structure at the interface between fluorene-1-carboxylic acid molecules and Cu(110).
abstract: The interface electronic properties of fluorene-1-carboxylic acid (FC-1) adsorbed on Cu(110) have been studied by ultraviolet photoemission spectroscopy (UPS) and first-principles calculations. Both the molecular orbitals and the Cu valence band are significantly modified upon adsorption. FC-1 is chemically bonded to Cu(110) through charge donation and back donation involving the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO) of the molecule. An observed reduction of the work function can be attributed to the adsorption induced charge redistribution, and the positive interface dipole.
authors.affiliation: Physics Department, Zhejiang University, Hangzhou, 310027, People's Republic of China. Institute for Storage Ring Facilities and Interdisciplinary Nanoscience Center (iNANO), University of Aarhus, 8000 Aarhus C, Denmark.
authors.forename: Fei
authors.initials: F
authors.lastname: Song
authors.forename: Hongying
authors.initials: H
authors.lastname: Mao
authors.forename: Dandan
authors.initials: D
authors.lastname: Guan
authors.forename: Weidong
authors.initials: W
authors.lastname: Dou
authors.forename: Hanjie
authors.initials: H
authors.lastname: Zhang
authors.forename: Haiyang
authors.initials: H
authors.lastname: Li
authors.forename: Pimo
authors.initials: P
authors.lastname: He
authors.forename: Philip
authors.initials: P
authors.lastname: Hofmann
authors.forename: Shining
authors.initials: S
authors.lastname: Bao