Performance limits of organic transistors

Field effect transistors with organic active layers are a fascinating new frontier in device physics. Devices have been made by many groups on a variety of substrates, including plastic, with a view to eventually develop low-cost, large-area electronic systems based on such transistor technology. Until recently, very little was known about charge transport phenomena in organic transistor active materials. We describe the results of a series of experiments which elucidate the mechanisms of carrier transport in thin film transistors (TFTs) based on oligothiophenes such as /spl alpha/-sexithiophene (/spl alpha/-6T) and their derivatives such as /spl alpha/,/spl omega/ dihexyl sexithiophene (H6T).