2-Hexylthieno[3,2-b]thiophene-substituted Anthracene Derivatives for Organic Field Effect Transistors and Photovoltaic Cells

摘要: Novel 2-hexylthieno[3,2-b]thiophene-containing conjugated molecules have been synthesized via a reduction reaction using tin chloride in an acidic medium. They exhibited good solubility common organic solvents and self-film crystal-forming properties. The single-crystalline objects were fabricated by solvent slow diffusion process then employed for fabricating field-effect transistors (FETs) along with thinfilm (TFTs). TFTs made of 5 6 carrier mobility as high 0.10-0.15 . single-crystal-based FET showed 0.70 which was relatively higher than that the 5-based (). In addition, we photovoltaic (OPV) cells new 2-hexylthieno [3,2-b]thiophene-containing methanofullerene [6,6]-phenyl C61-butyric acid methyl ester () without thermal annealing. ternary system bulk heterojunction (BHJ) OPV cell elaborated two p-type such 7 modulating molecular energy levels. As result, containing 5, 7, had improved results open-circuit voltage 0.90 V, short-circuit current density 2.83 , fill factor 0.31, offering overall power conversion efficiency (PCE) 0.78%, larger those devices only molecule (~0.67%) or (~0.46%) under identical weight compositions.