Air-stable n-channel organic transistors based on a soluble C84 fullerene derivative

Air-stable n-channel organic transistors are fabricated using a newly synthesized soluble fullerene derivative. The airstable nature of this molecule allows the realization of complementary circuits under ambient conditions without encapsulation. As shown in the figure, the I-V characteristics of the devices are retained even after exposure to air for a week. To the best of our knowledge, this is the first demonstration of an air-stable electron-transporting fullerene-based molecule.