Two-dimensional π-conjugated molecules based-on 2,6,9,10-tetra(prop-1-yn-1-yl)anthracene and their application to solution-processed photovoltaic cells

Novel two-dimensional π-conjugated anthracene-based molecules were utilized as highly soluble p-type organic semiconductors for organic thin film transistors (TFTs) and solar cells. From the TFTs, the higher hole mobility of the pristine film containing 9,10-THB was measured to be 0.07 cm2 V−1 s−1 (Ion/off = 106-107). Further, a solution-processed solar cell made of 9,10-THB and PC61BM exhibited very promising and reproducible power conversion efficiencies of 3.30% with composition 1:1 w/w ratio.