Synthesis and Electronic Energy-Level Regulation of Imide-Fused Poly(thienylene vinylene) Derivatives

doi:10.1002/pola.26923

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis and Electronic Energy-Level Regulation of Imide-Fused Poly(thienylene vinylene) Derivatives
	Wang, Xiaochen 1,2,3; Gao, Chen 1; Wang, Kai 1,3; Fan, Xi 3; Wang, Haiqiao 1; Li, Xiaoyu 2; Zhang, Zhi-Guo 3; Li, Yongfang 3
刊名	JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
	2013-12-01
卷号	51 期号:23 页码:4975-4982
关键词	Conjugated Polymers Electrochemistry Electronic Energy Level Polymer Solar Cells Poly(Thienylene Vinylene) (Ptvs) Synthesis Thieno[3 4-c]Pyrrole-4 6-dione (Tpd)
ISSN号	0887-624X
DOI	10.1002/pola.26923
英文摘要	A series of novel poly(thienylene vinylene) derivatives (PTVs), P20-P24, with imide substituents were designed and synthesized by palladium-catalyzed Stille coupling polymerization, wherein the imide substituent density was decreased gradually, which allowed us to explicitly study the effect of electron-deficient substituent on the optical, electrochemical, and photovoltaic properties of the PTVs. All of the four polymers showed broad absorption bands with optical bandgaps between1.66 and 1.78 eV. By reducing density of electron-deficient imide group, the LUMO energy levels of the polymers could be tuned gradually from -3.75 to -3.43 eV, with HOMO levels upshifted from -5.64 to -5.16 eV. Bulk heterojunction solar cells with the polymers as donor and PC71BM as acceptor demonstrated very different excitons dissociation behavior. With decreasing the imide-fused unit density, the open-circuit voltage (V-OC) values in the devices decreased from 0.78 to 0.62 V, whereas the short-circuit currents (J(SC)) increased from 0 to 2.26 mA cm(-2) and then decreased to 1.01 mA cm(-2). By adjusting the electron-withdrawing imide substituent density, power conversion efficiency of the PTVs-based solar cells can be increased to four times, reached 0.86%. To the best of our knowledge, this is the first systematic study of the relationship between molecular energy level and photovoltaic properties of PTVs. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 4975-4982
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000326018200004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54107]
专题	中国科学院化学研究所
通讯作者	Wang, Haiqiao
作者单位	1.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China 2.Beijing Univ Chem Technol, Minist Educ, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaochen,Gao, Chen,Wang, Kai,et al. Synthesis and Electronic Energy-Level Regulation of Imide-Fused Poly(thienylene vinylene) Derivatives[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2013,51(23):4975-4982.
APA	Wang, Xiaochen.,Gao, Chen.,Wang, Kai.,Fan, Xi.,Wang, Haiqiao.,...&Li, Yongfang.(2013).Synthesis and Electronic Energy-Level Regulation of Imide-Fused Poly(thienylene vinylene) Derivatives.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,51(23),4975-4982.
MLA	Wang, Xiaochen,et al."Synthesis and Electronic Energy-Level Regulation of Imide-Fused Poly(thienylene vinylene) Derivatives".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 51.23(2013):4975-4982.