Randomized trial shows thermofield effects on conductivity in graphite-like carbon films, indicating temperature-dependent mechanisms.
Key Points
This study aims to analyze the electrical properties and structural behavior of graphite-like amorphous carbon films under varying temperatures and electric fields.
Deposited films through electron-beam evaporation followed by vacuum heat treatment.
Analyzed current-voltage characteristics across a temperature range of 25 to 155 °C.
Calculated Schottky barrier heights from the current-voltage characteristics.
Direct tunneling dominates at 25–45 °C with Schottky barrier height of φb = 0.055 eV.
Thermally assisted tunneling is observed at 55–75 °C with barrier height φb = 0.076 eV.
Above 85 °C, charge transport occurs via thermionic emission with barrier height φb = 0.3 eV.