Abstract
N-type semiconductor is a necessary component for high speed and low power dissipation complementary circuits. However, n-type organic field-effect transistors (OFETs) with both high electron mobility and good ambient stability are rare. In this contribution, we develop a strong electron-deficient small molecule, tetrafluorine benzodifurandione-based oligo(p-phenylenevinylene) (4F-BDOPV), for n-type OFETs. 4F-BDOPV has a low LUMO level down to −4.44 eV and a cofacial packing structure in single crystal. These fea-tures provide 4F-BDOPV with good ambient stability and large charge transfer integrals leading to a high electron mobility of up to 12.6 cm2 V−1 s−1 in air, which is among the highest values for n-type OFETs. This work demonstrates a new molecule system for high-performance air-stable n-type OFETs, which is highly promising for single crystal based electronics.
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