Molecule of the Month August 2014 |
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Contrast Formation in Kelvin Probe Force Microscopy of Single π-Conjugated Molecules |
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We report the contrast formation in the local contact potential difference (LCPD) measured by Kelvin probe force microscopy (KPFM) on single charge-transfer complexes (CTCs) on a NaCl bilayer on Cu(111). At different tip heights, we found quantitatively different LCPD contrasts that characterize different properties of the molecule.
This work was carried out in the group of Prof. Silvio Decurtins under the guidance of Dr. Shi-Xia Liu in collaboration with IBM Research - Zurich. References:
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