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Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells | |
Chen, Hao1,2 ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2022-05 | |
发表期刊 | NATURE PHOTONICS (IF:32.3[JCR-2023],35.8[5-Year]) |
ISSN | 1749-4885 |
EISSN | 1749-4893 |
发表状态 | 已发表 |
DOI | 10.1038/s41566-022-00985-1 |
摘要 | The energy landscape of reduced-dimensional perovskites (RDPs) can be tailored by adjusting their layer width (n). Recently, two/three-dimensional (2D/3D) heterostructures containing n = 1 and 2 RDPs have produced perovskite solar cells (PSCs) with >25% power conversion efficiency (PCE). Unfortunately, this method does not translate to inverted PSCs due to electron blocking at the 2D/3D interface. Here we report a method to increase the layer width of RDPs in 2D/3D heterostructures to address this problem. We discover that bulkier organics form 2D heterostructures more slowly, resulting in wider RDPs; and that small modifications to ligand design induce preferential growth of n ≥ 3 RDPs. Leveraging these insights, we developed efficient inverted PSCs (with a certified quasi-steady-state PCE of 23.91%). Unencapsulated devices operate at room temperature and around 50% relative humidity for over 1,000 h without loss of PCE; and, when subjected to ISOS-L3 accelerated ageing, encapsulated devices retain 92% of initial PCE after 500 h. © 2022, The Author(s), under exclusive licence to Springer Nature Limited. |
关键词 | Perovskite solar cells 3D interface Electron blocking Energy landscape Layer width Ligand design Organics Power conversion efficiencies Preferential growth Quantum size Reduced-dimensional |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | US Department of the Navy, Office of Naval Research Grant[N00014-20-1-2572] ; National Key Research Program[ |
WOS研究方向 | Optics ; Physics |
WOS类目 | Optics ; Physics, Applied |
WOS记录号 | WOS:000779245100003 |
出版者 | Nature Research |
EI入藏号 | 20221511947850 |
EI主题词 | Perovskite |
EI分类号 | 482.2 Minerals ; 702.3 Solar Cells |
原始文献类型 | Article in Press |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/171511 |
专题 | 物质科学与技术学院_博士生 物质科学与技术学院_PI研究组_宁志军组 物质科学与技术学院_硕士生 |
通讯作者 | Ning, Zhijun; Sargent, Edward H. |
作者单位 | 1.The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto; ON, Canada; 2.School of Physical Science and Technology, ShanghaiTech University, Shanghai, China; 3.Department of Chemistry, University of Kentucky, Lexington; KY, United States; 4.KAUST Solar Center, Physical Sciences and Engineering Division (PSE), Materials Science and Engineering Program (MSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia; 5.Department of Mechanical and Industrial Engineering, University of Toronto, Toronto; ON, Canada; 6.Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Chen, Hao,Teale, Sam,Chen, Bin,et al. Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells[J]. NATURE PHOTONICS,2022. |
APA | Chen, Hao.,Teale, Sam.,Chen, Bin.,Hou, Yi.,Grater, Luke.,...&Sargent, Edward H..(2022).Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells.NATURE PHOTONICS. |
MLA | Chen, Hao,et al."Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells".NATURE PHOTONICS (2022). |
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