Diamond ultramicro- and nano-electrode arrays

Boron-doped diamond as one of the best electrode materials has been used for the fabrication of diamond ultramicro- and nano-electrode arrays. These arrays amplify the signal of individual micro-/nano-electrodes but do not lose the beneficial characteristics of individual micro-/nano-electrodes. In this chapter we summarize the fabrication, properties, and applications of diamond ultramicro- and nano-electrode arrays. The technologies for the fabrication of these arrays and the characterization methods applied at Fraunhofer IAF are explained in detail as examples.