Two new tercopolymers incorporating electron-rich benzodithiophene and electron-accepting pyrrolo[3,4-c]pyrrole-1,3-dione and difluorobenzothiadiazole derivatives for polymer solar cells

被引：3
|
作者：
Tamilavan, Vellaiappillai [1 ,2 ]
Kim, Seungmin [2 ]
Agneeswari, Rajalingam [1 ]
Lee, Dal Yong [2 ]
Cho, Shinuk [3 ]
Jeong, Junghyun [2 ]
Jin, Youngeup [4 ]
Park, Sung Heum [2 ]
Hyun, Myung Ho [1 ]
机构：
[1] Pusan Natl Univ, Chem Inst Funct Mat, Dept Chem, Busan 690735, South Korea
[2] Pukyong Natl Univ, Dept Phys, Busan 608737, South Korea
[3] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea
[4] Pukyong Natl Univ, Dept Ind Chem, Busan 608739, South Korea
来源：
POLYMER BULLETIN | 2018年 / 75卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
Polymer solar cells; Tercopolymers; Benzodithiophene-based polymers; Pyrrolo[3,4-c]pyrrole-1,3-dione-based polymers; Benzothiadiazole-based polymers; POWER CONVERSION EFFICIENCY; BAND-GAP POLYMERS; HIGH-PERFORMANCE; PHOTOVOLTAIC PROPERTIES; COPOLYMERS; TERPOLYMERS; SINGLE; IMIDE; UNITS; SELENOPHENE;
D O I：
10.1007/s00289-017-2028-9
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Two new tercopolymers (RP1 and RP2) containing electron-donating benzodithiophene, weak electron-accepting pyrrolo[3,4-c]pyrrole-1,3-dione derivative and strong electron-accepting 5,6-difluorobenzothiadiazole derivative were prepared. The opto-electrical studies showed that RP1 and RP2 displayed identical optical band gaps (E (g) similar to 1.72 eV) and highest occupied/lowest unoccupied molecular orbital energy levels (HOMO/LUMO similar to -5.32 eV/-3.60 eV). The polymer solar cells prepared with the configuration of ITO/PEDOT:PSS/RP1:PC70BM (1:1.5 wt%) + 3 vol% DIO/Al and ITO/PEDOT:PSS/RP2:PC70BM (1:1.5 wt%) + 3 vol% DIO/Al exhibited a maximum power conversion efficiency (PCE) of 5.16% (V (oc) similar to 0.76 V, J (sc) similar to 10.93 mA/cm(2), and FF similar to 0.62) and a PCE of 3.56% (V (oc) similar to 0.67 V, J (sc) similar to 9.67 mA/cm(2), and FF similar to 0.55), respectively.
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页码：239 / 253
页数：15
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