Abstract
Nanocrystalline graphite thin films were synthesized at atmospheric pressure by pyrolysis of toluene without a catalyst and using an aerosol assisted chemical vapor deposition method. The film thickness is controllable by the process time and pyrolysis temperature. Micro-Raman spectroscopy reveals that the films have nanocrystalline graphite structure. Energy dispersive X-ray spectroscopy confirms the high purity of the carbon films, indicating that all properties measured are only due to the graphitized carbon thin film. Electronic transport properties such as temperature dependent resistance, Hall effect and magnetoresistance show the typical behavior of low-dimensional carbon based materials.
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