Ladder-type heteroacene-based dopant-free hole-transporting materials for efficient and stable CsPbI2Br perovskite solar cells

doi:10.1016/j.dyepig.2021.109368

	Ladder-type heteroacene-based dopant-free hole-transporting materials for efficient and stable CsPbI2Br perovskite solar cells
	Hao, Liu1,2 ; Qisheng, Tu 1; Di, Wang1,2 ; Qingdong, Zheng 1
	2021-07
发表期刊	DYES AND PIGMENTS (IF:4.1[JCR-2023],3.7[5-Year])
ISSN	0143-7208
EISSN	1873-3743
卷号	191 页码:109368
发表状态	已发表
DOI	10.1016/j.dyepig.2021.109368
摘要	Dopant-free hole-transporting materials (HTMs) play a vital role in improving the power conversion efficiencies (PCEs) and stability for all-inorganic perovskite solar cells (PVSCs). In this work, two donor-acceptor-donor (D-A-D) type HTMs (L2 and L2-T) were designed and synthesized by using a ladder-type heteroacene core. Compared to L2-T with thiophene spacers, L2 presents suitable energy levels, smooth surface morphology, and improved hole mobility. Consequently, CsPbI₂Br PVSC based on L2 delivers a decent PCE of 12.41%, which outperforms the counterpart based on L2-T (11.07%). Whereas, the control device based on dopant-free 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD) reveals a relatively low PCE of 9.95%. In addition, both the L2- and L2-T-based devices can maintain over 85% of their original PCEs after 1000 h storage demonstrating their excellent shelf stability. This work highlights the good potential of the ladder-type heteroacene building block for developing dopant-free HTMs toward high-performance CsPbI₂Br PVSCs.
关键词	Perovskite solar cells Hole-transporting materials Dopant-free Ladder-type heteroacene Stability
学科门类	工学 ; 工学::材料科学与工程（可授工学、理学学位）
URL	查看原文
收录类别	SCI ; EI ; SCIE
语种	英语
WOS记录号	WOS:000652615400007
出版者	ELSEVIER SCI LTD
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/126131
专题	物质科学与技术学院_硕士生物质科学与技术学院_博士生
通讯作者	Qingdong, Zheng
作者单位	1.State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002, China 2.School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, China
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Hao, Liu,Qisheng, Tu,Di, Wang,et al. Ladder-type heteroacene-based dopant-free hole-transporting materials for efficient and stable CsPbI2Br perovskite solar cells[J]. DYES AND PIGMENTS,2021,191:109368.
APA	Hao, Liu,Qisheng, Tu,Di, Wang,&Qingdong, Zheng.(2021).Ladder-type heteroacene-based dopant-free hole-transporting materials for efficient and stable CsPbI2Br perovskite solar cells.DYES AND PIGMENTS,191,109368.
MLA	Hao, Liu,et al."Ladder-type heteroacene-based dopant-free hole-transporting materials for efficient and stable CsPbI2Br perovskite solar cells".DYES AND PIGMENTS 191(2021):109368.