Charge Density and Film Morphology Dependence of Charge Mobility in Polymer Field-Effect Transistors


  • This research (No. 56/00-11.6) was supported by the Israel Science Foundation.


A qualitative comparison between the extended disorder model for charge transport and the measured charge density dependence of the field-effect mobility is presented for field-effect transistors (see Figure) using a poly(phenylenevinylene) layer. By varying the film morphology through the use of polymers of different molecular weights, further insight into the role of morphology is gained.