Organic FET devices: structure-property relationship in evaporated films of three fluorenone derivatives

The transport properties of three fluorenone derivatives used as active layers in organic field effect transistor (OFET) have been studied. A full structural characterization, evidencing the packing features due to the fluorenone moiety, has been carried out. To rationalize the charge carrier mobility values, it is shown that in addition to structural considerations the redox behavior of molecules has to be taken into account. Structure-property relationships are identified, which might drive the future development of oligomers suitable for OFET applications.