Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites

doi:10.1039/c8ta04936j

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 应用技术研究所

	Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites
	Liu, Guozhen 1,2; Zheng, Haiying 1,2; Xu, Xiaoxiao 1,2; Zhu, Liangzheng 1,2; Alsaedi, Ahmed 3; Hayat, Tasawar 3,5; Pan, Xu 1; Dai, Songyuan 1,3,4
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2018-10-07
卷号	6 期号:37 页码:18067-18074
ISSN号	2050-7488
DOI	10.1039/c8ta04936j
通讯作者	Pan, Xu(xpan@rntek.cas.cn) ; Dai, Songyuan()
英文摘要	Perovskite solar cells (PSCs) exhibit remarkable photovoltaic performance with a power conversion efficiency (PCE) over 22%, but they exhibit instability in moist environments and at high temperatures. Compared to 3D perovskites, two-dimensional (2D) layered perovskites display excellent environmental stability but relatively poor photovoltaic performance. Here, we combined 2D/3D perovskites and simultaneously introduced the cesium cation (Cs+) to fabricate benzylammonium-caesium-formamidinium mixed-dimensional (MD) perovskite (BE/FA/Cs MD perovskite) solar cells. The BE/FA/Cs MD perovskite device with an optimal benzylammonium content exhibits a PCE as high as 19.24%. The improved PCE of 19.24% (BE/FA/Cs MD, x = 0.05) is attributed to great crystal orientation, outstanding surface quality, superior optical properties and enhanced charge transfer. More importantly, the BE/FA/Cs MD perovskite devices display superior humidity and heat stability. When subjected to 50% relative humidity (RH) for 1600 h and 85 degrees C for 240 h in the dark, the BE/FA/Cs MD (x = 0.05) devices without encapsulation retain 85% and 83% of their initial PCE, respectively. These results provide us with an important method to obtain highly efficient MD PSCs with long-term stability as a next-generation photovoltaic energy source.
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	CH3NH3PBI3 PEROVSKITE ; HALIDE PEROVSKITES ; HIGH-PERFORMANCE ; LEAD TRIHALIDE ; DEGRADATION ; LENGTHS ; LAYERS
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000448340100023
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/334002/40046]
专题	合肥物质科学研究院_应用技术研究所
通讯作者	Pan, Xu; Dai, Songyuan
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia 4.North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China 5.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
推荐引用方式 GB/T 7714	Liu, Guozhen,Zheng, Haiying,Xu, Xiaoxiao,et al. Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(37):18067-18074.
APA	Liu, Guozhen.,Zheng, Haiying.,Xu, Xiaoxiao.,Zhu, Liangzheng.,Alsaedi, Ahmed.,...&Dai, Songyuan.(2018).Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites.JOURNAL OF MATERIALS CHEMISTRY A,6(37),18067-18074.
MLA	Liu, Guozhen,et al."Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites".JOURNAL OF MATERIALS CHEMISTRY A 6.37(2018):18067-18074.