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FRINATEK-Fri prosj.st. mat.,naturv.,tek

Electronic and electrical properties of carbon cone materials

Awarded: NOK 2.2 mill.

The use of carbon structures, as carbon nanotubes, in coatings, electrodes, light-harvesting devices and sensors is a growing research field. Carbon cone materials are recognized as a novel type of carbon, consisting of nano- to micrometer sized particles with the shape of disks and cones. The conical particles have unique electronic properties derived from the unique structure. Extensive theoretical work on the cones has already been carried out and experimental results have shown the possibility of fo rming ordered structures of these particles under the application of electric fields. Due to the special nature of the predicted electronic properties of these cones, they are candidates for photovoltaic and sensor applications. Hence we want to investig ate the electronic and electrical properties of singular particles and different thin film forms of this material. By using Inverse photoelectron spectroscopy (IPES) and ultra-violet photoelectron spectroscopy (UPS) electronic band structure of the carbo n cone material will be investigated. Scanning tunneling microscopy will be used to investigate the electrical properties of single particles. The I-V characteristics of a single carbon cone will not only provide information regarding electronic transpor t properties of the particles but it may also be used to study the effects of adsorbates on the cones. This effect will be correlated to the bulk electrical characteristics as will be studied using impedance spectroscopy.

Funding scheme:

FRINATEK-Fri prosj.st. mat.,naturv.,tek