A Copolymer of Benzodithiophene with TIPS Side Chains for Enhanced Photovoltaic Performance

doi:10.1021/ma2019683

CORC > 化学研究所 > 中国科学院化学研究所

	A Copolymer of Benzodithiophene with TIPS Side Chains for Enhanced Photovoltaic Performance
	Shi, Qinqin 3; Fan, Haijun 3; Liu, Yao 3; Hu, Wenping ; Li, Yongfang ; Zhan, Xiaowei 1
刊名	MACROMOLECULES
	2011-12-13
卷号	44 期号:23 页码:9173-9179
ISSN号	0024-9297
DOI	10.1021/ma2019683
英文摘要	A new conjugated copolymer PBDTTT-TIPS containing thiazolothiazole acceptor unit and triisopropylsilylethynyl (TIPS)-functionalized benzodithiophene donor unit was synthesized by Pd-catalyzed Stifle coupling and compared with its alkoxy-substituted analogue PBDTTT-C12. PBDTTT-TIPS exhibits decomposition temperature of 377 C, absorption maximum of 598 cm, HOMO level of -5.3 eV, and hole mobility as high as 1.2 x 10(-3) cm(2) V-1 s(-1). Without any post-treatments, polymer solar cells based on the blend of PBDTTT-TIPS and PC71BM exhibited power conversion efficiency as high as 4.33%, which is 2 times that for device based on the PBDTTT-C12:PC71BM blend. TIPS and C12 side chains exhibit a little impact on absorption, HOMO level, and hole mobility of the polymers, but they significantly influence blend film morphology and photovoltaic performance. TIPS side chains induces excellent compatibility between PBDTTT-TIPS and PC71BM, and the PBDTTT-TIPS:PC71BM blend exhibits perfect phase separation scales around 10-20 nm, which is beneficial to charge separation and enhanced efficiency of the device, while C12 side chains leads to large phase separation, which is responsible for the lower efficiency.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000297604200013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73617]
专题	中国科学院化学研究所
通讯作者	Zhan, Xiaowei
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Shi, Qinqin,Fan, Haijun,Liu, Yao,et al. A Copolymer of Benzodithiophene with TIPS Side Chains for Enhanced Photovoltaic Performance[J]. MACROMOLECULES,2011,44(23):9173-9179.
APA	Shi, Qinqin,Fan, Haijun,Liu, Yao,Hu, Wenping,Li, Yongfang,&Zhan, Xiaowei.(2011).A Copolymer of Benzodithiophene with TIPS Side Chains for Enhanced Photovoltaic Performance.MACROMOLECULES,44(23),9173-9179.
MLA	Shi, Qinqin,et al."A Copolymer of Benzodithiophene with TIPS Side Chains for Enhanced Photovoltaic Performance".MACROMOLECULES 44.23(2011):9173-9179.