Small molecule donor based on alkoxylated benzothiadiazole unit: Synthesis and photovoltaics properties

doi:10.1016/j.matchemphys.2020.122874

	Small molecule donor based on alkoxylated benzothiadiazole unit: Synthesis and photovoltaics properties
	Meng, Wei 2,3; Lv, Jie 2; Duan, Tainan 2; Kan, Zhipeng 2; Lu, Shirong 2; Dai, Xuexin 1,2; Li, Zhefeng 3
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2020-06-01
卷号	247 页码:9
关键词	Benzothiadiazole Non-fullerene Small molecule donor All small molecule organic solar cells
ISSN号	0254-0584
DOI	10.1016/j.matchemphys.2020.122874
通讯作者	Duan, Tainan(tnduan@cigit.ac.cn) ; Kan, Zhipeng(kanzhipeng@cigit.ac.cn) ; Li, Zhefeng(zhefeng@cqu.edu.cn)
英文摘要	Two small molecule donors (namely BTRO and BTCN) based on the benzothiadiazole unit were synthesized in this study. In comparison to BTRO, BTCN has a narrower absorption spectrum, however, BTCN has better crystallinity, higher carrier mobility, and better light absorption that is complementary to IDIC-4F. Non-fullerene all small molecule organic solar cells (SM-OSCs) based on BTCN: IDIC-4F exhibited a power conversion efficiency (PCE) of 4.62% with short circuit current density (J(sc)) of 11.46 mA/cm(2), open-circuit voltage (V-oc) of 0.89 V, and fill factor (FF) of 0.45. In contrast, non-fullerene SM-OSCs based on BTRO: IDIC-4F showed PCE, J(sc), V-oc, and FF values of 4.08%, 11.04 mA/cm(2), 0.91 V, and 0.41, respectively. Our results show that benzothiadiazole is a very good acceptor unit for regulating the absorption and energy levels of non-fullerene SM-OSCs.
资助项目	National Natural Science Foundation of China[61805245] ; National Natural Science Foundation of China[21702202and 21762036] ; Fundamental Research Funds for the Central Universities[2019CDXYHG0013] ; Guizhou Province Science and Technology Foundation[LH[2015]7706]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000530647200028
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/11028]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Duan, Tainan; Kan, Zhipeng; Li, Zhefeng
作者单位	1.Qiannan Normal Univ Nationalities, Sch Chem & Chem Engn, Duyun 558000, Guizhou, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Meng, Wei,Lv, Jie,Duan, Tainan,et al. Small molecule donor based on alkoxylated benzothiadiazole unit: Synthesis and photovoltaics properties[J]. MATERIALS CHEMISTRY AND PHYSICS,2020,247:9.
APA	Meng, Wei.,Lv, Jie.,Duan, Tainan.,Kan, Zhipeng.,Lu, Shirong.,...&Li, Zhefeng.(2020).Small molecule donor based on alkoxylated benzothiadiazole unit: Synthesis and photovoltaics properties.MATERIALS CHEMISTRY AND PHYSICS,247,9.
MLA	Meng, Wei,et al."Small molecule donor based on alkoxylated benzothiadiazole unit: Synthesis and photovoltaics properties".MATERIALS CHEMISTRY AND PHYSICS 247(2020):9.