B - Operations – Transporting – 82 – B
Patent
B - Operations, Transporting
82
B
B82B 3/00 (2006.01)
Patent
CA 2652130
The present invention provides a process for partially covering solid crystalline surfaces with lines of selected atoms or molecules, a procedure known as the atomic or molecular 'patterning' of such surfaces. The method utilizes a mechanism of Dipole-Induced Assembly (DIA) for the growth of lines of physisorbed dipolar molecules on crystalline surfaces is disclosed. In an exemplary embodiment, physisorbed 1,5 dichloropentane (DCP) on Si(100)-2x1 at room temperature is shown by scanning tunneling microscopy (STM) to self-assemble into molecular lines that grow predominantly perpendicular to the Si-dimer rows. Extensive simulations indicate that the trigger for formation of these lines is the displacement of surface charge by the dipolar adsorbate, giving rise to an induced uni-directional surface-field and hence surface buckling.
Harikumar Krishnan R.
Hofer Werner A.
Mcnab Iain Ross
Polanyi John C.
Harikumar Krishnan R.
Hill & Schumacher
Hofer Werner A.
Mcnab Iain Ross
Polanyi John C.
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