Beilstein J. Nanotechnol.2011,2, 34–39, doi:10.3762/bjnano.2.4
synthesis of the cyano-porphyrin molecules has been described in detail in [40]. The bulk crystals were cleaved in UHV followed by an annealing step at 150 °C to reduce surface charges. In our experiments we used additionally a Cu(111) surface which was prepared in UHV according to regular surfacescience
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Figure 1:
(a) Topographical measurement of molecular structures at KBr step edges showing monowires (1), unor...
Beilstein J. Nanotechnol.2011,2, 1–14, doi:10.3762/bjnano.2.1
and another one recorded at varying bias voltage are shown in Figure 3.
Spectroscopic methods: tip-sample forces in NC-AFM
In surfacescience, forces detectable by NC-AFM in UHV at low temperature have been classified into three main categories [9]. The first category has an electrostatic origin and
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Figure 1:
Model of a binary oxide surface. Point defects such as color centers, which are preferably situated...