Electron Transport in Thin-Film Transistors from an n-Type Conjugated Polymer

n-Type field-effect transistors (see Figure) with electron mobilities as high as 5 × 10–4 cm2/V s —the highest field-effect mobility of electrons observed to date in a conjugated polymer—have been obtained. Improvements in the purification and control of the morphology of thin films should result in even higher electron mobilities for this type of conjugated polymers.