Enhancing the Efficiency of Polymer Solar Cells by Incorporation of 2,5-Difluorobenzene Units into the Polymer Backbone via Random Copolymerization

doi:10.1021/acsami.7b05787

	Enhancing the Efficiency of Polymer Solar Cells by Incorporation of 2,5-Difluorobenzene Units into the Polymer Backbone via Random Copolymerization
	Zhang, Zhe1 ; Liu, Yahui 2; Zhang, Jicheng 2; Feng, Shiyu 2; Wu, Liangliang 2; Gong, Xue 2; Xu, Xinjun 2; Chen, Xuebo 2; Bo, Zhishan 2
	2017-07-19
发表期刊	ACS Applied Materials and Interfaces
ISSN	1944-8244
卷号	9 期号:28 页码:23775-23781
摘要	A series of conjugated polymers P0, P5, and P7 containing 0, 5, and 7 mol % 2,5-difluorobenzene units, respectively, were prepared and utilized as electron donors in polymer solar cells. Incorporation of a small amount of 2,5-difluorobenzene unit into the backbone of donor polymers can significantly increase their planarity and crystallinity as well as decrease their solubility. The improved molecular conformation can markedly affect the morphology of polymer:PC71BM blend films. After incorporation of 5 mol % 2,5-difluorobenzene unit into the backbone of donor polymers, the domain size of blend films became smaller and the hole mobility increased. Increasing the content of 2,5-difluorobenzene to 7 mol % can further decrease the solubility of resulting polymers and resulted in poor solution processability. As a result, P5-based devices achieved a power conversion efficiency (PCE) of 8.5%, whereas P0 based devices gave a PCE of 7.8%. © 2017 American Chemical Society.
关键词	Conjugated polymers Copolymerization Crystallinity Efficiency Hole mobility Polymer films Solubility 2,5-difluorobenzene Benzothiadiazoles Electron donors Molecular conformation Polymer backbones Power conversion efficiencies Random copolymerization Solution processability
DOI	10.1021/acsami.7b05787
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000406172700053
出版者	American Chemical Society
EI入藏号	20173003966134
EI主题词	Polymer solar cells
EI分类号	712.1 Semiconducting Materials ; 801.4 Physical Chemistry ; 815 Polymers and Polymer Science ; 913.1 Production Engineering
原始文献类型	Journal article (JA)
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.nwnu.edu.cn/handle/39RV6HYL/31621
专题	实体学院_化学化工学院实体学院_化学化工学院_化工系直属单位_分析测试中心
通讯作者	Xu, Xinjun; Chen, Xuebo; Bo, Zhishan
作者单位	1.Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Eco Environm Related Polymer Mat, Key Lab Polymer Mat Gansu Prov,Minist Educ, Lanzhou 730070, Gansu, Peoples R China; 2.Beijing Normal Univ, Beijing Key Lab Energy Convers & Storage Mat, Coll Chem, Beijing 100875, Peoples R China
第一作者单位	化工系
第一作者的第一单位	化工系
推荐引用方式 GB/T 7714	Zhang, Zhe,Liu, Yahui,Zhang, Jicheng,et al. Enhancing the Efficiency of Polymer Solar Cells by Incorporation of 2,5-Difluorobenzene Units into the Polymer Backbone via Random Copolymerization[J]. ACS Applied Materials and Interfaces,2017,9(28):23775-23781.
APA	Zhang, Zhe.,Liu, Yahui.,Zhang, Jicheng.,Feng, Shiyu.,Wu, Liangliang.,...&Bo, Zhishan.(2017).Enhancing the Efficiency of Polymer Solar Cells by Incorporation of 2,5-Difluorobenzene Units into the Polymer Backbone via Random Copolymerization.ACS Applied Materials and Interfaces,9(28),23775-23781.
MLA	Zhang, Zhe,et al."Enhancing the Efficiency of Polymer Solar Cells by Incorporation of 2,5-Difluorobenzene Units into the Polymer Backbone via Random Copolymerization".ACS Applied Materials and Interfaces 9.28(2017):23775-23781.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Zhang-2017-Enhancing（4528KB）	期刊论文		开放获取	CC BY-NC-SA	浏览下载