Design of High-Efficiency and Environmentally Stable Mixed-Dimensional Perovskite Solar Cells Based on Cesium-Formamidinium Lead Halide Component

doi:10.1021/acs.chemmater.8b02970

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	Design of High-Efficiency and Environmentally Stable Mixed-Dimensional Perovskite Solar Cells Based on Cesium-Formamidinium Lead Halide Component
	Liu, Guozhen 1,2; Zheng, Haiying 1,2; Xu, Xiaoxiao 1,2; Zhu, Liang-Zheng 1,2; Zhang, Xianxi 3; Pan, Xu 1
刊名	CHEMISTRY OF MATERIALS
	2018-11-13
卷号	30 期号:21 页码:7691-7698
ISSN号	0897-4756
DOI	10.1021/acs.chemmater.8b02970
通讯作者	Pan, Xu(xpan@rntek.cas.cn)
英文摘要	Long-term instability of the high-efficiency perovskite solar cells (PSCs) has been the intractable hindrance for their further commercialized applications. Here, we successfully introduced 2-hydroxyethylamine cation (HEA(+)) into Cs/FA mixed-cation three-dimensional (3D) perovskite to form a new type stable mixed-dimensional (MD) perovskite structure based on the general formula of (HEA)(2)(Cs(0.1)FA(0.9))(n-1)PbnI3n+1. The FAPbBr(3) component was also employed to improve the quality of the thin films. The designed MD perovskite films exhibit better crystallization, outstanding optical properties, and uniform morphology with fewer grain boundaries. Especially, because of inheriting the advantages of high-performance FA-based 3D perovskite, the PSCs made from MD-Br-10 (n = 30) perovskite achieved the optimal power conversion efficiency (PCE) as high as 19.84% and an average PCE of 19.02% among 30 devices. Surprisingly, it is found that the MD PSCs show superior long-term stability when exposed to heat and moisture because of the high-quality films and intrinsic stability structure. After they were aged at the condition of 85 degrees C (about 10% relative humidity in the dark) for 400 h and 55 +/- 5% relative humidity (about 25 degrees C in the dark) for 2160 h, the unencapsulated devices can maintain 82% and 87% of the initial PCE, respectively. This work provides a feasible design direction of new-type MD perovskites to obtain efficient and stable PSCs for next-generation photovoltaic devices.
资助项目	National High Technology Research and Development Program of China[2015AA050602] ; STS project of Chinese Academy of Sciences[KFJ-SW-STS-152]
WOS关键词	STABILITY ; TRIHALIDE
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000450696100035
资助机构	National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences ; STS project of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/40445]
专题	合肥物质科学研究院_应用技术研究所
通讯作者	Pan, Xu
作者单位	1.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Liaocheng Univ, Collaborat Innovat Ctr Chem Energy Storage & Nove, Shandong Prov Key Lab, Liaocheng 252000, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guozhen,Zheng, Haiying,Xu, Xiaoxiao,et al. Design of High-Efficiency and Environmentally Stable Mixed-Dimensional Perovskite Solar Cells Based on Cesium-Formamidinium Lead Halide Component[J]. CHEMISTRY OF MATERIALS,2018,30(21):7691-7698.
APA	Liu, Guozhen,Zheng, Haiying,Xu, Xiaoxiao,Zhu, Liang-Zheng,Zhang, Xianxi,&Pan, Xu.(2018).Design of High-Efficiency and Environmentally Stable Mixed-Dimensional Perovskite Solar Cells Based on Cesium-Formamidinium Lead Halide Component.CHEMISTRY OF MATERIALS,30(21),7691-7698.
MLA	Liu, Guozhen,et al."Design of High-Efficiency and Environmentally Stable Mixed-Dimensional Perovskite Solar Cells Based on Cesium-Formamidinium Lead Halide Component".CHEMISTRY OF MATERIALS 30.21(2018):7691-7698.