Band-Like Electron Transport in Organic Transistors and Implication of the Molecular Structure for Performance Optimization

The Hall effect and an increase of field‐effect mobility with decreasing temperature is observerd in n‐channel single‐crystal organic field‐effect transistors (OFETs). A quantitative analysis of these findings, together with results on different p‐channel transistors, indicate the importance of the semiconductor molecular polarizability and the structure of the charge transport layers in the crystal for the observation of band‐like transport in OFETs.