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A fluorinated phenethylammonium-based spacer cation prompts the spontaneous formation of gradient 2D/3D perovskites for efficient and stable solar cells
2023-09
发表期刊SOLAR RRL (IF:6.0[JCR-2023],6.4[5-Year])
ISSN2367-198X
EISSN2367-198X
卷号7期号:23
发表状态已发表
DOIDOI: 10.1002/solr.202300674
摘要

["Despite the prominent photovoltaic performance and broad application prospect of perovskite solar cells (PVSCs), a significant challenge for their commercialization is the stability issue. Herein, a fluorinated organic ammonium salt, 4-trifluoromethyl phenethyl ammonium iodide (4FPAI), is utilized for the spontaneous formation of gradient 2D/3D perovskite which can be prepared by a simple one-step spin-coating process with low-dimensional phases on the surface and high-dimensional phases at the bottom. The introduction of 4FPAI leads to improved charge transport as well as reduced nonradiative recombination. The optimal 4FPAI-based PVSC exhibits a power conversion efficiency (PCE) of 22.12% which is higher than that of the control PVSC without the 4FPAI treatment (20.87%). Meanwhile, the encapsulated 4FPAI-based device remains at about 88% of its initial PCE under ambient air exposure for 80 days, demonstrating its improved moisture resistance compared to the reference device. This work provides an important strategy for fabricating high efficiency and long-term stable 2D/3D PVSCs.","With the incorporation of fluorinated organic ammonium (4-trifluoromethyl phenethyl ammonium iodide (4FPAI)), high-efficiency 2D/3D perovskite solar cells are fabricated by one step spin coating. The 4FPAI-treated film shows improved crystallization, enhanced charge transport as well as significantly improved moisture stability thereby yielding the resulting device with a champion power conversion efficiency of 22.12% and improved device stability.image (c) 2023 WILEY-VCH GmbH"]

关键词2D/3D perovskites fluorination photovoltaic performance solar cells stability
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收录类别SCI ; EI
语种英语
资助项目This work was supported by the National Natural Science Foundation of China (No. 52130306) and the Program of Youth Innovation Promotion Association CAS (No. 2021299).[52130306] ; National Natural Science Foundation of China[2021299]
WOS研究方向Energy & Fuels ; Materials Science
WOS类目Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:001083029100001
出版者WILEY-V C H VERLAG GMBH
EI入藏号20234214914172
EI主题词Perovskite
EI分类号482.2 Minerals ; 525.5 Energy Conversion Issues ; 615.2 Solar Power ; 702.3 Solar Cells
原始文献类型Journal article (JA)
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/331144
专题物质科学与技术学院
物质科学与技术学院_博士生
通讯作者Zheng, Qingdong
作者单位
1.Chinese Acad Sci, Fujian Inst Res Struct, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
3.Nanjing Univ, Coll Engn & Appl Sci, State Key Lab Coordinat Chem, Nanjing 210023, Peoples R China
第一作者单位物质科学与技术学院
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GB/T 7714
Tai, Shuya,Chen, Shan-Ci,Ma, Yunlong,et al. A fluorinated phenethylammonium-based spacer cation prompts the spontaneous formation of gradient 2D/3D perovskites for efficient and stable solar cells[J]. SOLAR RRL,2023,7(23).
APA Tai, Shuya,Chen, Shan-Ci,Ma, Yunlong,&Zheng, Qingdong.(2023).A fluorinated phenethylammonium-based spacer cation prompts the spontaneous formation of gradient 2D/3D perovskites for efficient and stable solar cells.SOLAR RRL,7(23).
MLA Tai, Shuya,et al."A fluorinated phenethylammonium-based spacer cation prompts the spontaneous formation of gradient 2D/3D perovskites for efficient and stable solar cells".SOLAR RRL 7.23(2023).
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