title: Direct observation of molecular orbitals of pentacene physisorbed on Au(111) by scanning tunneling microscope.
abstract: Differential conductance (dI/dV) images taken with a low-temperature scanning tunneling microscope enabled the first observation of the electron probability distribution of the molecular orbitals of a pentacene molecule directly adsorbed on a metal surface. The three highest occupied molecular orbitals (HOMO, HOMO-1, and HOMO-2) and the lowest unoccupied molecular orbital are imaged. Thus dI/dV imaging without any intervening insulating layer permits the visualization of a large variety of molecular orbitals in the electronic cloud of a wide-gap molecule physisorbed on a metal surface.
authors.affiliation: IMRE, A*STAR (Agency for Science, Technology and Research), 3 Research Link, 117602, Singapore.
authors.forename: W-H
authors.initials: WH
authors.lastname: Soe
authors.forename: C
authors.initials: C
authors.lastname: Manzano
authors.forename: A
authors.initials: A
authors.lastname: De Sarkar
authors.forename: N
authors.initials: N
authors.lastname: Chandrasekhar
authors.forename: C
authors.initials: C
authors.lastname: Joachim