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Efficient solar cells with enhanced humidity and heat stability based on benzylammonium-caesium-formamidinium mixed-dimensional perovskites
Liu, Guozhen1,2; Zheng, Haiying1,2; Xu, Xiaoxiao1,2; Zhu, Liangzheng1,2; Alsaedi, Ahmed3; Hayat, Tasawar3,5; Pan, Xu1; Dai, Songyuan1,3,4
2018-10-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:37Pages:18067-18074
Corresponding AuthorPan, Xu(xpan@rntek.cas.cn) ; Dai, Songyuan()
AbstractPerovskite 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.
Funding OrganizationNational 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
DOI10.1039/c8ta04936j
WOS KeywordCH3NH3PBI3 PEROVSKITE ; HALIDE PEROVSKITES ; HIGH-PERFORMANCE ; LEAD TRIHALIDE ; DEGRADATION ; LENGTHS ; LAYERS
Indexed BySCI
Language英语
Funding ProjectNational High Technology Research and Development Program of China[2015AA050602] ; STS project of Chinese Academy of Sciences[KFJ-SW-STS-152] ; National High Technology Research and Development Program of China[2015AA050602] ; STS project of Chinese Academy of Sciences[KFJ-SW-STS-152]
Funding OrganizationNational 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
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000448340100023
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/40047
Collection应用技术研究所
Corresponding AuthorPan, Xu; Dai, Songyuan
Affiliation1.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
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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.
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