[23a-22C-1~11] 12.5 Organic and hybrid solar cells

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[23a-22C-2] Development of Organic Solar Cell Materials Based on Vinylene-Bridged Bis(difluoroquinoxaline)

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

Keywords:

semiconducting polymers,organic solar cells,conjugated polymers

To develop high-performance p-type semiconducting polymers with a simpler molecular structure for organic photovoltaics, we synthesized two semiconducting polymers based on a vinylene-bridged bis(difluoroquinoxaline) (FQxE) as a new acceptor unit, combined with a terthiophene donor. Furthermore, we conducted a comprehensive evaluation of their physicochemical properties, thin-film structure, and the photovoltaic characteristics of organic solar cells, utilizing representative low-bandgap n-type semiconductors. The outcome of our study demonstrated a remarkable power conversion efficiency exceeding 13%.