Abstract
A report is presented on the realisation and characterisation of symmetrical metal‐insulator‐metal (MIM) diodes using the new material combination: copper‐copper oxide‐copper (Cu‐CuO‐Cu). The MIM diodes, having contact areas of 2 × 2 µm2, were fabricated using electron beam lithography and sputter deposition. The MIM diodes exhibited an absolute sensitivity as high as 4.497 V− 1.