[16a-A401-1~10] 12.5 Organic and hybrid solar cells

[16a-A401-5] Development of Organic Solar Cell Materials Based on a Vinylene-Bridged Alkoxyfluorobenzothiadiazole

〇Hiroki Mori¹, Hiroki Yamane², Ryuchi Hosogi², Yasushi Nishihara¹ (1.RIIS, Okayama Univ., 2.Grad. Sch. of Nat. Sci. and Tech., Okayama Univ.)

Keywords:semiconducting polymers, organic solar cells, conjugated polymers

In order to develop the high-performance p-type semiconducting polymers for nonfullerene solar cells, a new semiconducting polymer based on a vinylene-bridged alkoxyfluorobenzothiadiazole (FOBTzE) as a new acceptor unit in combination with a benzodithiophene derivative was synthesized. Furthermore, we evaluated its physicochemical properties, thin-film structure, and photovoltaic properties of nonfullerene solar cells utilizing representative low-bandgap n-type semiconductors. As a result, 10.2% of power conversion efficiency has been achieved.