1.8 Organic Memory

Electrical bistability has been demonstrated in organic materials. Bistability means that the material shows two different states of conductivity at the same applied voltage, typically a highly conductive on-state and poorly conductive off-state. These states are stable, and a transition between them can occur when a defined criterion such as a high voltage bias is met. This property is ideal for rewritable memory applications. Organic memory devices are generally realized by interposing thin layers containing organic materials between two electrodes. Such devices have the potential advantages of flexibility, easy processing, low cost, and large area fabrication by printing techniques.