Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells

doi:10.1021/acs.macromol.7b00998

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 先进有机功能材料团队

	Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells
	Song, Xin 1; Zhang, Yongchao 2; Li, Yonghai 2; Li, Feng 3; Bao, Xichang 2; Ding, Dakang 1; Sun, Mingliang 1; Yang, Renqiang 2
刊名	MACROMOLECULES
	2017-09-12
卷号	50 期号:17 页码:6880-6887
DOI	10.1021/acs.macromol.7b00998
文献子类	Article
英文摘要	Here we design and synthesize one novel fluorene side-chained benzodithiophene (BDT) monomer for polymer solar cells (PSCs) donor. By copolymerizing this monomer with 4,7-di(thiophen-2-yl)-2,1,3-benzothiadiazole (DTBT) or 4,7-di(4-(2ethylhexyl)-2-thienyl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT), two donor acceptor (D-A) conjugated polymers PFBDT-DTBT and PFBDT-DTffBT are prepared. PSCs are prepared with these polymers as donor and PC71BM as acceptor. The maximum power conversion efficiency (PCE) of the two polymers PFBDT-DTBT and PFBDT-DTffBT based PSCs is 7.13% (V-OC = 0.90 V, J(SC) = 13.26 mA cm(-2), and FF = 0.598) and 7.33% (V-OC = 0.96 V, J(SC) = 13.24 mA cm(-2), and FF = 0.577). The UV-vis absorption and electrochemical cyclic voltammetry test results show that F atoms in DTffBT unit present an obvious influence on intermolecular effect and molecular energy levels of polymers. Furthermore, the energy loss of two PSCs devices in this work is confirmed to be 0.78 and 0.71 eV, lower than most results based on BDT PSCs devices, which is critical to obtain high PCE PSCs devices with a decent trade-off between J(SC) and V-OC.
WOS关键词	POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGES ; CONJUGATED POLYMERS ; SEMICONDUCTING POLYMERS ; POLYFLUORENE COPOLYMER ; ORGANIC PHOTOVOLTAICS ; HOLE MOBILITY ; PERFORMANCE ; DONOR ; BENZOTHIADIAZOLE
WOS研究方向	Polymer Science
语种	英语
WOS记录号	WOS:000410867400054
资助机构	National Natural Science Foundation of China(51573205 ; 21502205 ; 21274134)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9576]
专题	青岛生物能源与过程研究所_先进有机功能材料团队
作者单位	1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 261000, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 3.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Minist Educ Shandong Prov, Key Lab Rubber Plast, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China
推荐引用方式 GB/T 7714	Song, Xin,Zhang, Yongchao,Li, Yonghai,et al. Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells[J]. MACROMOLECULES,2017,50(17):6880-6887.
APA	Song, Xin.,Zhang, Yongchao.,Li, Yonghai.,Li, Feng.,Bao, Xichang.,...&Yang, Renqiang.(2017).Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells.MACROMOLECULES,50(17),6880-6887.
MLA	Song, Xin,et al."Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells".MACROMOLECULES 50.17(2017):6880-6887.