Improved anode material for orange-dye as organic semiconductor

We investigated the metal semiconductor charge injection process to find the most suitable ohmic metal for Orange Dye (OD) as organic semiconductor. For this purpose, different metal semiconductor Schottky diodes such as (a) Au/OD/Al, (b) SnO2/OD/Al, (c) Ni/OD/Al, and (d) Ga/OD/Al were fabricated and electrically characterized. It is observed that all Schottky diodes follow space charge limited model to define their charge transport mechanism and at the same time Ga/OD interface offered best electrical response, while Ni/OD interface offered lowest electrical responses. As, aluminum electrode and all other fabrication parameters are same for all Schottky diodes, therefore it is inferred tha…