TITLE

Band dispersion of quasi-single crystal thin film phase pentacene monolayer studied by angle-resolved photoelectron spectroscopy

AUTHOR(S)
Ohtomo, Manabu; Suzuki, Tadamasa; Shimada, Toshihiro; Hasegawa, Tetsuya
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p123308
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Intermolecular band dispersion of thin film phase pentacene grown epitaxially on step-bunched [formula] Bi–Si(111) was investigated using angle resolved photoemission spectroscopy at 130 K. We evaluated the transfer integrals using two-dimensional tight-binding fit to the experimental dispersion and found that adjacent molecules in Γ-M direction have the strongest coupling as predicted. The estimated effective mass at the top of the valence band was isotropic and ranged between 0.8 and 1.0 of the electron mass.
ACCESSION #
44374728

 

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