Well-controlled thieno[3,4-c]pyrrole-4,6-(5H)-dione based conjugated polymers for high performance organic photovoltaic cells with the power conversion efficiency exceeding 9%

被引：110

作者：

Kim, Ji-Hoon ^{[1
,2
]}

Park, Jong Baek ^{[1
,2
]}

Jung, In Hwan ^{[3
]}

Grimsdale, Andrew C. ^{[4
]}

Yoon, Sung Cheol ^{[3
]}

Yang, Hoichang ^{[5
]}

Hwang, Do-Hoon ^{[1
,2
]}

机构：

[1] Pusan Natl Univ, Dept Chem, Busan 609735, South Korea

[2] Pusan Natl Univ, Chem Inst Funct Mat, Busan 609735, South Korea

[3] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea

[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[5] Inha Univ, Optoelect Hybrids Res Ctr, Dept Appl Organ Mat Engn, Inchon 402751, South Korea

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2015年 / 8卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

HETEROJUNCTION SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; BAND-GAP POLYMERS; MORPHOLOGY CONTROL; SEMICONDUCTING POLYMERS; BACKBONE ORIENTATION; BUILDING-BLOCK; HIGH HOLE; DIKETOPYRROLOPYRROLE; SINGLE;

D O I：

10.1039/c5ee01627d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have synthesized a series of conjugated D-pi-A copolymers, PT-ttTPD and PBT-ttTPD, based on a (5-hexyltridecyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione (ttTPD) acceptor unit in order to develop better photovoltaic polymers based on the TPD moiety: an epsilon-branched alkyl side chain on the TPD unit was coupled with 6-alkyl-thieno[3,2-b]thiophene (tt) pi-bridge molecules. The Stille polymerization of the brominated ttTPD and stannylated simple thiophene (T) finally gave a promising PT-ttTPD polymer showing well-ordered inter-chain orientation in the BHJ active layer. PT-ttTPD-based OPVs exhibited a highest power conversion efficiency (PCE) of 9.21% (V-OC = 0.86 V, J(SC) = 15.30 mA cm(-2), FF = 70%).

引用

页码：2352 / 2356

页数：5

共 51 条

[1] Molecular Design and Ordering Effects in π-Functional Materials for Transistor and Solar Cell Applications [J].