Non-conjugated polymer films to monitoring strain deformation of metals and alloys

The charge injection process at the metal and organic material interface has a large impact on the electrical properties of organic electronic devices. One of the key parameters of charge carrier transport is the metal electron work function (EWF). The EWF is affected by imperfections of the metal that arise during its formation or technological influence: deformations, dislocations, point defects, complexes of defects. The results of the study demonstrate the dependence of the potential barrier at the metal/polymer interface on the local microhardness of the steel. When the microhardness of steel changes from 234 to 290 kgf/mm 2 , the potential barrier increases by 50 meV, the contact resistance decreases tenfold. Considering that diagnostics of elastic and inelastic processes in metals and alloys is an urgent task, this approach can be developed in the field of non-destructive testing of metal products and structures of complex shape.