Evaluation of structure-property relationships of solution-processible fullerene acceptors and their n-channel field-effect transistor performance

A series of fullerene acceptors have been selected for the systematic study of their electron-transporting properties on a standardized field-effect transistor (FET) platform. It was found that small structural alternations, functional patterns, and number of addends on fullerene derivatives strongly affect their mobilities. The measured charge mobilities correlate well with structural features of these materials and provide useful insights into designing better fullerene-based semiconductors for organic electronics.