A simple high-performance fully nonfused ring electron acceptor with a planar molecular backbone

doi:10.1016/j.cej.2022.136472

	A simple high-performance fully nonfused ring electron acceptor with a planar molecular backbone
	Zheng, Xinming 1,2; Liu, Wenlong 2,3; Lu, Hao 2; Yu, Na 4; Wang, Yunzhi 2; Huang, Hao 2; Li, Song 2; Wang, Xiaodong 2; Wang, Hang 1; Liu, Yahui 1
	2022-09-15
发表期刊	Chemical Engineering Journal
ISSN	1385-8947
卷号	444
摘要	We designed two simple fully nonfused ring electron acceptors 4T-OEH and 4T-EH with 3,4-bis(alkoxy)thiophene and 3,4-dialkylthiophene π-bridge units, respectively, which can be modularly synthesized with only four high-yield steps. With the help of intramolecular S-O noncovalent interaction, 4T-OEH tends to form a planar molecular backbone, which is beneficial for the electron delocalization and charge transport. Besides, the neat 4T-OEH film displays a more ordered molecular packing and obviously red-shifted absorption after thermal annealing. Compared with 4T-EH, 4T-OEH based devices can form more homogenous phase morphology, higher and more balanced hole and electron mobilities. The optimal OSCs based on 4T-OEH can generate an excellent PCE of 12.12%, which is much higher than 4T-OEH based ones (7.36%). It is worth noting that the figure-of-merit values of 4T-OEH is much higher than the star acceptors (ITIC and Y6), demonstrating its high potential for future practical application. Our work has demonstrated that we can tune the backbone planarity, solubility and packing behavior of acceptor molecules via optimizing their lateral substituents to obtain high efficiency and low-cost fully nonfused ring electron acceptors. © 2022 Elsevier B.V.
关键词	Blue shift Electrons Ions Red Shift Solar power generation Electron-acceptor Fully nonfused ring electron acceptor Higher yield Modular synthesis Nonfullerene acceptor Performance Photovoltaic performance Ring electrons Simple++ Synthesised
DOI	10.1016/j.cej.2022.136472
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000800394200001
出版者	Elsevier B.V.
EI入藏号	20221812061417
EI主题词	Organic solar cells
EI分类号	615.2 Solar Power ; 702.3 Solar Cells ; 741.1 Light/Optics
来源库	WOS
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158513
专题	兰州理工大学
通讯作者	Liu, Yahui; Xu, Xinjun; Bo, Zhishan
作者单位	1.Qingdao Univ, Coll Text & Clothing, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China; 2.Beijing Normal Univ, Coll Chem, Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China; 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 4.Donghua Univ, Coll Mat Sci & Engn, Ctr Adv Low dimens Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xinming,Liu, Wenlong,Lu, Hao,et al. A simple high-performance fully nonfused ring electron acceptor with a planar molecular backbone[J]. Chemical Engineering Journal,2022,444.
APA	Zheng, Xinming.,Liu, Wenlong.,Lu, Hao.,Yu, Na.,Wang, Yunzhi.,...&Bo, Zhishan.(2022).A simple high-performance fully nonfused ring electron acceptor with a planar molecular backbone.Chemical Engineering Journal,444.
MLA	Zheng, Xinming,et al."A simple high-performance fully nonfused ring electron acceptor with a planar molecular backbone".Chemical Engineering Journal 444(2022).