Thiazolothiazole‐Containing Ambipolar Organic Semiconductor with Balanced Hole and Electron Mobility

Abstract Thiazolothiazole‐containing organic semiconductors DH‐TTFZTT and DPCO‐TTFZTT were synthesized. Single crystal diffraction result revealed that DH‐TTFZTT adopts herringbone packing in the crystals, and strong S–S and S–π intermolecular interactions were found among neighboring molecules, which form a two‐dimensional network in the crystals. Thin‐film transistor characteristics showed that DH‐TTFZTT behaves as a p‐channel semiconductor with a hole mobility of approximately 2×10−2 cm2 V−1 s−1. DPCO‐TTFZTT‐based devices have balanced ambipolar performance, with hole and electron mobilities as high as 2.41×10−2 cm2 V−1 s−1 and 2.36×10−2 cm2 V−1 s−1 respectively, which are some of the highest values for thiazolothiazole derivatives.