Highly Efficient Non-Fullerene Organic Solar Cells Using 4,8-Bis((2-ethylhexyl)oxy)benzo[1,2-b:4,b ']dithiophene-Based Polymers as Additives

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Highly Efficient Non-Fullerene Organic Solar Cells Using 4,8-Bis((2-ethylhexyl)oxy)benzo[1,2-b:4,b ']dithiophene-Based Polymers as Additives
	Ge, Ziyi; Yang, Rongjuan; Huang, Jiaming; Hong, Ling; Song, Wei; Guan, Qian; Liu, Zhiyang; Wei, Qiang; Fan, Xi; Peng, Ruixiang
刊名	MACROMOLECULES
	2018
卷号	51 期号:11 页码:4032-4039
关键词	Electron-acceptor Conversion Efficiency Perylene Diimides Design Pdi
英文摘要	Electron acceptor units play an important role in the design of donor-acceptor (D-A) type polymers for efficient organic solar cells (OSCs). In this report, with the oxidation of the thiophene moiety, the electron-rich 4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b']dithiophene (BDT) unit was tuned into electron-deficient 4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b']dithiophene 1,1,5,5-tetraoxide (BDTO) unit. Two novel polymers of PBDTO and PBDTO-T based on BDTO unit were synthesized and employed as additives in efficient non-fullerene OSCs with the active layer consist of PBDB-T and IT-M. With doping 1% PBDTO or PBDTO-T, the power conversion efficiency (PCE) of the prepared OSCs increased from 10.31% to 11.47% or 11.12%, respectively. These two polymers can afford cascaded energy levels and smooth the surface of the active layer, which are beneficial for better carrier transportation and separation. Our results open a new avenue to construct electron acceptor backbone in the design of D-A type polymers for OSCs.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17399]
专题	2018专题
推荐引用方式 GB/T 7714	Ge, Ziyi,Yang, Rongjuan,Huang, Jiaming,et al. Highly Efficient Non-Fullerene Organic Solar Cells Using 4,8-Bis((2-ethylhexyl)oxy)benzo[1,2-b:4,b ']dithiophene-Based Polymers as Additives[J]. MACROMOLECULES,2018,51(11):4032-4039.
APA	Ge, Ziyi.,Yang, Rongjuan.,Huang, Jiaming.,Hong, Ling.,Song, Wei.,...&Lei, Tao.(2018).Highly Efficient Non-Fullerene Organic Solar Cells Using 4,8-Bis((2-ethylhexyl)oxy)benzo[1,2-b:4,b ']dithiophene-Based Polymers as Additives.MACROMOLECULES,51(11),4032-4039.
MLA	Ge, Ziyi,et al."Highly Efficient Non-Fullerene Organic Solar Cells Using 4,8-Bis((2-ethylhexyl)oxy)benzo[1,2-b:4,b ']dithiophene-Based Polymers as Additives".MACROMOLECULES 51.11(2018):4032-4039.