title: Valence electronic properties of n-channel organic materials based on fluorinated derivatives of perylene diimides.
abstract: The valence electronic states of three kinds of fluorinated derivatives of perylene diimides, D2MFPP, D3MFPP, and D4MFPP, on Cu(110) and SiO(2)Si surface were studied by photoemission and density functional calculations. When these organic molecules were deposited on the Cu(110) and thermally oxidized SiO(2) surfaces, five well-resolved photoemission features originating from the molecules were observed. On Cu(110) surface, two emission features with pi-like character increased their binding energy with increasing the coverage of organic molecule, indicating a strong interaction between the organic molecules and Cu substrate. The density functional calculations suggest flat-lying adsorption geometry for D3MFPP and D4MFPP on Cu(110) surface.
authors.affiliation: Physics Department, Zhejiang University, Hangzhou 310027, China.
authors.forename: Weidong
authors.initials: W
authors.lastname: Dou
authors.forename: Dandan
authors.initials: D
authors.lastname: Guan
authors.forename: Fei
authors.initials: F
authors.lastname: Song
authors.forename: Nana
authors.initials: N
authors.lastname: Li
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: Hongzheng
authors.initials: H
authors.lastname: Chen
authors.forename: Shining
authors.initials: S
authors.lastname: Bao
authors.forename: Philip
authors.initials: P
authors.lastname: Hofmann