Poly(thieno[3,2-b]thiophene-alt-bithiazole): A D-A Copolymer Donor Showing Improved Photovoltaic Performance with Indene-C-60 Bisadduct Acceptor

doi:10.1021/ma301269f

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	Poly(thieno[3,2-b]thiophene-alt-bithiazole): A D-A Copolymer Donor Showing Improved Photovoltaic Performance with Indene-C-60 Bisadduct Acceptor
	Guo, Xia; Zhang, Maojie; Huo, Lijun; Cui, Chaohua; Wu, Yue; Hou, Jianhui; Li, Yongfang
刊名	MACROMOLECULES
	2012-09-11
卷号	45 期号:17 页码:6930-6937
ISSN号	0024-9297
DOI	10.1021/ma301269f
英文摘要	A new D-A copolymer, poly(thieno[3,2-b]thiophene-alt-bithiazole) (PTTBTz), based on thieno[3,2-b]thiophene donor unit and bithiazole acceptor unit, was synthesized by the Pd-catalyzed Stile-coupling reaction for the application as donor material in polymer solar cells (PSCs). PTTBTz film possesses high thermal stability with 5% weight-loss temperature at 450 degrees C, a lower-lying HOMO energy level at -5.20 eV, a higher hole mobility of 6.45 x 10(-3) cm(2)/(V s), and a crystalline structure. Photovoltaic performance of the polymer was investigated with [6,6]-phenyl-C-71-butyric acid methyl ester (PC70BM) or indene-C-60 bisadduct (ICBA) as acceptor and with 3% DIO additive. The power conversion efficiency (PCE) of the PSC based on PTTBTz:ICBA (1:1 w/w) reached 5.35% with a high V-oc of 1.03 V, a J(sc) of 8.55 mA/cm(2), and an FF of 0.608, whereas the PCE of the PSC based on PTTBTz:PC70BM (1:1 w/w) was 4.57% with a V-oc of 0.82 V, a J(sc) of 9.89 mA/cm(2), and an FF of 0.563, under the illumination of AM1.5, 100 mW/cm(2). PTTBTz is one of the D-A copolymers that shows better photovoltaic performance with ICBA as acceptor than PC70BM. PTTBTz/ICBA could be a promising front active layer for high-efficiency tandem PSC because of its high V-oc.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000309014000020
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48485]
专题	中国科学院化学研究所
通讯作者	Zhang, Maojie
作者单位	Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xia,Zhang, Maojie,Huo, Lijun,et al. Poly(thieno[3,2-b]thiophene-alt-bithiazole): A D-A Copolymer Donor Showing Improved Photovoltaic Performance with Indene-C-60 Bisadduct Acceptor[J]. MACROMOLECULES,2012,45(17):6930-6937.
APA	Guo, Xia.,Zhang, Maojie.,Huo, Lijun.,Cui, Chaohua.,Wu, Yue.,...&Li, Yongfang.(2012).Poly(thieno[3,2-b]thiophene-alt-bithiazole): A D-A Copolymer Donor Showing Improved Photovoltaic Performance with Indene-C-60 Bisadduct Acceptor.MACROMOLECULES,45(17),6930-6937.
MLA	Guo, Xia,et al."Poly(thieno[3,2-b]thiophene-alt-bithiazole): A D-A Copolymer Donor Showing Improved Photovoltaic Performance with Indene-C-60 Bisadduct Acceptor".MACROMOLECULES 45.17(2012):6930-6937.