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Long-range order in a multilayer organic film templated by a molecular-induced surface reconstruction: Pentacene on Au(110)

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5 Author(s)
Guaino, Ph. ; National Centre for Sensor Research (NCSR), Dublin City University, Glasnevin, Dublin 9, Ireland ; Carty, D. ; Hughes, G. ; McDonald, O.
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We describe the growth of a highly ordered pentacene film on the Au(110) surface, investigated in both real and reciprocal space using scanning tunneling microscopy and low-energy electron diffraction techniques. At high coverage, a unidirectional multilayer of π-stacked molecular row is formed with long-range order. Investigations of the interface at low molecular coverage show that this molecular arrangement is a direct consequence of a pentacene-induced surface reconstruction. Pentacene molecules initially adsorb between atomic gold rows of the Au(110)–(1×2) missing row structure and induce a (1×3) surface reconstruction, acting as a template for the organic film formation.

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Applied Physics Letters  (Volume:85 ,  Issue: 14 )