论文信息 - Field emission from DLC films

Field emission from DLC films

Abstract Field emission measurements on diamond like carbon (DLC) films with different amounts of sp 3 and sp 2 carbon were carried out. Depending on the amount of sp 2 carbon in the film, activated and non-activated Fowler-Nordheim like emission could be observed. The emission spots were investigated using a combination of AFM and STM, by simultaneously measuring the topography and the conductivity of the samples. In the case of sp 2 rich DLC films we could observe that the emission originates from highly conducting inclusions of sp 2 carbon in a matrix of insulating sp 3 carbon. These inclusions are already existing on the sp 2 sample by the deposition process itself and are formed by the activation on the sp 3 rich sample.

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