Title of article :
Synthesis, characterization, and photovoltaic applications of dithienogermole-dithienylbenzothiadiazole and -dithienylthiazolothiazole copolymers
Author/Authors :
Hwang، نويسنده , , Yong-Mook and Ohshita، نويسنده , , Joji and Harima، نويسنده , , Yutaka and Mizumo، نويسنده , , Tomonobu and Ooyama، نويسنده , , Yousuke and Morihara، نويسنده , , Yasushi and Izawa، نويسنده , , Takafumi and Sugioka، نويسنده , , Takashi and Fujita، نويسنده , , Akio، نويسنده ,
Abstract :
New dithienogermole-based conjugated polymers were synthesized by the Stille coupling reactions of distannyldithienogermole and dibromoarene, and their photovoltaic properties were studied. These polymers possess low band gaps with broad absorptions covering the 400–800 nm range, and exhibit good film forming properties. Bulk hetero-junction solar cells prepared from blends of these polymers with PC70BM exhibit high power conversion efficiency up to 2.38%.
