Preparation of crystalline benzotrithiophene-based two-dimensional graphdiyne analogue

We report a crystalline two-dimensional (2D) benzotrithiophene-based graphdiyne (BTT-GDY), which features diacetylene as linkages and BTT as the functionalized core. The well-defined 2D structure of BTT-GDY with a unique pore was well characterized by selected area electron diffraction due to its good crystallinity. BTT-GDY films show some semiconductor characteristics including a bandgap of 2.38 eV, the conductivity of 2 x 10(-3) S m(-1) at room temperature. The hole mobility and the electron mobility of BTT-GDY films were determined to be 2.34 cm(2) V-1 S-1 and 3.35 x 10(-2) cm(2) V-1 S-1 by the space-charge-limited-current method.

Automated summary

We report a crystalline two-dimensional benzotrithiophene-based graphdiyne material with good crystallinity and unique pore structure, showing semiconductor characteristics and high conductivity.