Direct observation of molecular orbitals of pentacene physisorbed on Au(111) by scanning tunneling microscope.
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.
Soe
W-H
WH
IMRE, A*STAR (Agency for Science, Technology and Research), 3 Research Link, 117602, Singapore.
Manzano
C
C
De Sarkar
A
A
Chandrasekhar
N
N
Joachim
C
C