Title of article :
Synthesis and photovoltaic behaviors of benzothiadiazole- and triphenylamine-based alternating copolymers
Author/Authors :
Wang، نويسنده , , Ming and Li، نويسنده , , Cuihong and Lv، نويسنده , , Aifeng and Wang، نويسنده , , Zhaohui and Bo، نويسنده , , Zhishan and Zhang، نويسنده , , Fengling، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2012
Abstract :
A series of donor–acceptor (D–A) alternating copolymers (P1, P2 and P3) with thiophene–benzothiadiazole–thiophene–triphenylamine main chain have been synthesized by Suzuki polycondensation. P1, P2, and P3 possess medium optical band gaps of 1.99, 1.97 and 1.93 eV, respectively. Bulk heterojunction polymer solar cells (BHJ PSCs) with these polymers as donor and PC71BM as acceptor showed power conversion efficiency (PCE) in the range of 2.1–2.8%. The highest PCE of 2.8 % was achieved for P1 with short circuit current (Jsc) of 7.8 mA/cm2. This study offers a useful and important insight for designing triphenylamine derivative-based polymers used for efficient PSCs.
Keywords :
polymer solar cells , D–A copolymers , Conjugated Polymers
