南方科技大学知识苑(SUSTech KC): Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2 ',3 '-h]quinoxaline-Based Wide Band Gap Donor

题名	Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2 ',3 '-h]quinoxaline-Based Wide Band Gap Donor
作者	Zhao, Tingxing1,2 ; Cao, Congcong1,2 ; Wang, Hengtao1,2 ; Shen, Xiangyu1,2 ; Lai, Hanjian1,2 ; Zhu, Yulin1,2 ; Chen, Hui1,2,3 ; Han, Liang1,2 ; Rehman, Tahir1,2 ; He, Feng1,2,4
通讯作者	He, Feng
发表日期	2021-12-01
DOI	10.1021/acs.macromal.1c01940
发表期刊	MACROMOLECULES 影响因子和分区
ISSN	0024-9297
EISSN	1520-5835
卷号	54 期号:24
摘要	It is challenging yet appealing for researchers to construct new polymer donors that can work cooperatively with the polymer acceptors and thus realize maximum power conversion efficiencies (PCEs) of all-polymer solar cells (PSCs). We have synthesized two dithieno[3,2-f:2',3'-h]quinoxaline-based wide band gap donor polymers (PBQx-Me-TF and PBQx-H-TF) and a new gamma-position based narrow band gap polymer acceptor: PBTIC-gamma-TT. The temperature-dependent absorption spectra showed that removal of a weaker electron-donating methyl group in the donor polymer strengthened the aggregation and the absorption coefficients. The crystal structures showed that PBQx-H-TF had a closer pi-pi stacking distance of 3.33 angstrom when compared to the PBQx-Me-TF (3.40 angstrom). The smaller E-HOMO offset (0.07 eV) between the donor PBQx-H-TF and acceptor PBTIC-gamma-TT than that of PBQx-Me-TF/PBTIC-gamma-TT (0.10 eV) provided a better hole transport. The PBQx-H-TF/PBTIC-gamma-TT films showed a smaller total energy loss (0.574 eV) than the PBQx-Me-TF/PBTIC-gamma-TT film (0.607 eV); hence, this molecular structure adjustment reduced the nonradiative energy loss. PBQx-H-TF also showed better miscibility with PBTIC-gamma-TT with a smaller x value of 0.25. In addition, a bicontinuous interpenetrating microstructure was observed in the active layer blend film (PBQx-H-TF/PBTIC-gamma-TT), resulting in a J(SC) of 22.24 mA cm(-2), a FF of 67.80%, and a PCE of 14.21% in the device. These observations revealed the significance of molecular structure adjustment for better device performance, and therefore, PBQx-H-TF can be an excellent candidate for all-PSCs.
相关链接	[来源记录]
收录类别	SCI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[21975115,21733005,51903116] ; Shenzhen Fundamental Research Program["JCYJ20190809163011543","JCYJ20200109140801751","JCYJ20190809161413310"] ; Guangdong Innovative and En-trepreneurial Research Team Program[2016ZT06G587] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002] ; Shenzhen Sci-Tech Fund[KYTDPT 20181011104007]
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000734045100001
出版者	AMER CHEMICAL SOC
ESI学科分类	CHEMISTRY
来源库	Web of Science
引用统计	被引频次[WOS]：15
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/259857
专题	深圳格拉布斯研究院前沿与交叉科学研究院理学院_化学系
作者单位	1.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China 3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China 4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Shenzhen 518055, Peoples R China
第一作者单位	深圳格拉布斯研究院; 化学系
通讯作者单位	深圳格拉布斯研究院; 化学系; 南方科技大学
第一作者的第一单位	深圳格拉布斯研究院
推荐引用方式 GB/T 7714	Zhao, Tingxing,Cao, Congcong,Wang, Hengtao,et al. Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2 ',3 '-h]quinoxaline-Based Wide Band Gap Donor[J]. MACROMOLECULES,2021,54(24).
APA	Zhao, Tingxing.,Cao, Congcong.,Wang, Hengtao.,Shen, Xiangyu.,Lai, Hanjian.,...&He, Feng.(2021).Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2 ',3 '-h]quinoxaline-Based Wide Band Gap Donor.MACROMOLECULES,54(24).
MLA	Zhao, Tingxing,et al."Highly Efficient All-Polymer Solar Cells from a Dithieno[3,2-f:2 ',3 '-h]quinoxaline-Based Wide Band Gap Donor".MACROMOLECULES 54.24(2021).