The ATRAKTOR project addresses the study of the stability of organic electronic components. Organic electronics allows the creation of flexible and low-cost electronic circuits thanks to printing techniques, with very high economic potential. However, applications using organic transistors have not yet emerged due to the poor stability of the materials that induce transistor drifts. ATRAKTOR strives to understand the physical origins of the drift of transistors under electrical stress. For this we will perform on organic transistors micro-Raman measurements, in near optical field (Tip Enhanced Raman Spectroscopy TERS), and in near electric field (Kelvin Probe Force Microscopy KPFM). KPFM and micro-Raman characterisations will be performed on components in operation, during drift, which is very original. The project will expand the input of these original techniques, and study the physical origins of the stability of organic transistors.