High-current injection into liquid hexane using field emitters

Currents of up to 05 mA have been injected into commercial grade hexane, using a simple array of field-emitting razor-edge cathodes. The electrical power input resulted in bulk liquid motion, which aided charge transfer from the injection region. The magnitude of the resulting conduction current was found to depend on the hydrodynamic impedance of the test arrangement. The ability to inject large currents into liquid dielectrics, non-destructively, opens up the possibility of a new range of high-voltage devices.