Charge injection through Langmuir–Blodgett films into organic polymers

The steady‐state current‐voltage characteristics resulting from charge injection from a metal into an organic charge transporting polymer are found to deviate significantly from the space‐charge‐limited values when a Langmuir–Blodgett film of cadmium stearate is interposed between the metal and the organic polymer. A phenomenological model of charge injection is proposed to account for the observed features, and to quantify the injection level of a non‐Ohmic contact.