Light-assisted Charge Injection and Depletion of Insulator Electrets for Organic Field-effect Transistors

A semiconductor/electret layered configuration is attractive for organic field-effect transistors, and the reversible generation of hole or electron charged electrets within the device requires effective charge transport in the semiconductor. Here, in a transistor with an n/p/electret tri-layer configuration, illumination is used to assist reversible charge (hole and electron) injection and depletion of insulator electrets.