Structural Effects of Electrode Proximity in Vacuum?Deposited Organic Semiconductors Studied by Microfocused X?Ray Scattering

Organic semiconductors have seen widespread application in thin-film devices, such as organic field-effect transistors (OFETs), whose performance is closely linked to the molecular-level microstructure and crystalline orientation. In actual OFETs, varies significantly based on local environment, for example, proximity of contact electrodes. This account highlights recent examples where microfocused grazing-incidence wide-angle X-ray scattering (?GIWAXS) maps structural information between OFET Also shown are results ?GIWAXS used study naphthyl end-capped oligothiophenes across interdigitated electrode arrays a bottom-contact identifying lateral effects electrodes terms misorientation, crystallite size, disorder. The together with those highlighted, classify essential parameters demonstrate capabilities X-rays map microstructures devices. ideas presented herein bring us toward guidelines understanding device molecular semiconductors. It also believed that they readily expanded from OFETs other devices small molecules polymers materials.