Novel Organic Semiconductor BTQBT with High Conductivity and High Mobility

We have found a novel organic semiconductor, BTQBT, with a high electrical conductivity of about 10$\text{}^{-3}$ S cm$\text{}^{-1}$ and a high Hall mobility of about 3 cm$\text{}^{2}$ V$\text{}^{-1}$s$\text{}^{-1}$ at room temperature. We have also succeeded in measuring the temperature dependence of the Hall mobility. It varies with temperature as Τ$\text{}^{-1.6}$, which agrees with the theoretical Τ$\text{}^{-1.5}$ dependence for the mobility determined by lattice scattering. The characteristic transport property of BTQBT results from strong intermolecular interactions in the crystal, which is convinced by the energy dispersion with a bandwidth of about 0.5 eV from the theoretical and experimental band structures.