Diketopyrrolopyrrole as a p-channel organic semiconductor for high performance OTFTs†
Abstract
A new diketopyrrolopyrrole derivative 1 exhibits excellent hole mobilities of 0.7 cm2 V−1 s−1 and a current on/off ratio of 106 under ambient conditions in bottom-gate, top-contact organic thin film transistors (OTFTs) fabricated by