Conductivity of macromolecular networks measured by electrostatic force microscopy
- 16 July 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 83 (3) , 482-484
- https://doi.org/10.1063/1.1592888
Abstract
High-resolution electrostatic force microscopy (EFM)-phase measurements are reported on molecular networks of semiconductor polymer poly-hexylthiophene (P3HT) and DNA molecules. A lateral resolution of better than 20 nm is demonstrated in EFM-phase images of the P3HT network by detecting the phase shift of the tip along the molecules under electrical bias. Strands of λ-DNA are shown to be highly insulating in comparison to the semiconductor polymer P3HT, with a minimum resistance of
Keywords
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