Electronic Properties of a Single-Walled Carbon Nanotube/150mer-Porphyrin System Measured by Point-Contact Current Imaging Atomic Force Microscopy
Abstract:The electronic properties of a single-walled carbon nanotube/150mer of porphyrin polymer wire system were investigated. Current–voltage (I–V) curves were measured simultaneously along with topographic observations using point-contact current imaging atomic force microscopy. Symmetric I–V curves were obtained at bare single-walled carbon nanotubes but characteristic asymmetrical rectifying behavior was found at the single-walled carbon nanotube/150mer-porphyrin junctions. This finding is of key importance for the development of new nanoscale molecular electronic devices.
Document Type: Research Article
Publication date: June 1, 2006
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