Probing stress effects in single crystal organic transistors by scanning Kelvin probe microscopy

We report scanning Kelvin probe microscopy (SKPM) of single crystal difluoro bis(triethylsilylethynyl) anthradithiophene (diF-TESADT) organic transistors. SKPM provides a direct measurement of the intrinsic charge transport in the crystals independent of contact effects and reveals that degradation of device performance occurs over a time period of minutes as the diF-TESADT crystal becomes charged. (C) 2010 American Institute of Physics. [doi:10.1063/1.3389493]