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(a) Schematic of top and side views of the In/Si(111)- surface and (b) its representative high-resolution STM image . (c) Chemical structure of a PTCDA molecule.
STM images of (a) PTCDA molecules on the and coexisting surface. (b) High-resolution filled-state STM image of the PTCDA molecular chains on the surface. (c) Zoom-in image of the area marked by a square in (a). Unit vectors of the molecular superstructure are superimposed on the lattice of the Si substrate. (d) Proposed adsorption geometry of the PTCDA molecules on the surface.
(a) STM image of 1 ML PTCDA molecular chains on the surface. (b) The LEED pattern from the same surface with beam energy of 25 eV. (c) The corresponding FFT image of the STM image in (a).
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