Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications

doi:10.1039/c7tc01329a

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

	Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications
	Liu, Zhe 1; Liu, Deyu 2,3; Chen, Weiye 1; Wang, Junyi 2,3; Li, Feng 4; Wang, Di 2; Li, Yonghai 2; Sun, Mingliang 1; Yang, Renqiang 2
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2017-07-21
卷号	5 期号:27 页码:6798-6804
DOI	10.1039/c7tc01329a
文献子类	Article
英文摘要	Two novel copolymer donors based on one-dimensional (1D)-two-dimensional (2D) asymmetrical benzodithiophene (BDT) units (BDTPH-H and BDTPH-OR) and 2,3-diphenyl-5,8-di(thiophen-2-yl) quinoxaline (DTQx) were synthesized and compared with one-dimensional or two-dimensional symmetric BDT unit based photovoltaic polymers. Both asymmetrical polymers exhibited promising photovoltaic performance compared with 1D and 2D symmetric BDT polymers. The power conversion efficiency (PCE) of PBDTPH-DTQx based polymer solar cells is 5.6%, with balanced V-OC = 0.7 V, J(SC) = 11.89 mA cm(-2) and FF = 67.3%, which is almost the highest PCE compared with similar BDT unit and fluorine-free substituted DTQx based polymer. What is more, PBDTPH-DTQx shows better performance than PBDTPHO-DTQx due to the single phenyl making DTQx more planar and with better pi-pi stacking than alkoxy phenyl. These findings demonstrate that the 1D-2D asymmetrical BDT units are also applicable to poor planarity fluorine-free substituted quinoxaline acceptor system.
WOS关键词	POLYMER SOLAR-CELLS ; CONJUGATED POLYMER ; MOLECULAR DESIGN ; ENERGY-LEVEL ; SIDE-CHAINS ; PROCESSING ADDITIVES ; PERFORMANCE ; EFFICIENCY ; ACCEPTOR ; POLYELECTROLYTE
WOS研究方向	Materials Science ; Physics
语种	英语
WOS记录号	WOS:000405744100019
资助机构	NSFC(51573205 ; 21274134)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9627]
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 26100, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioprocess Technol, Qingdao 266101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Key Lab Rubber Plast, Minist Educ Shandong Prov, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhe,Liu, Deyu,Chen, Weiye,et al. Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(27):6798-6804.
APA	Liu, Zhe.,Liu, Deyu.,Chen, Weiye.,Wang, Junyi.,Li, Feng.,...&Yang, Renqiang.(2017).Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications.JOURNAL OF MATERIALS CHEMISTRY C,5(27),6798-6804.
MLA	Liu, Zhe,et al."Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications".JOURNAL OF MATERIALS CHEMISTRY C 5.27(2017):6798-6804.