Dynamical transformation of two-dimensional perovskites with alternating cations in the interlayer space for high-performance photovoltaics
文献类型：期刊论文
| 作者 | Zhang, Yalan1,2,3; Wang, Peijun1,2,3; Tang, Ming-Chun4,5; Barrit, Dounya4,5; Ke, Weijun7; Liu, Junxue9; Luo, Tao1,2,3; Liu, Yucheng1,2,3; Niu, Tianqi1,2,3; Smilgies, Detlef-M8 |
| 刊名 | Journal of the american chemical society
 |
| 出版日期 | 2019-02-13 |
| 卷号 | 141期号:6页码:2684-2694 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.8b13104 |
| 通讯作者 | Kanatzidis, mercouri g.(m-kanatzidis@northwestern.edu) ; Arnassian, aram(aamassi@ncsu.edu) ; Liu, shengzhong frank(szliu@dicp.ac.cn) ; Zhao, kui(zhaok@snnu.edu.cn) |
| 英文摘要 | The two-dimensional (2d) perovskites stabilized by alternating cations in the interlayer space (aci) define a new type of structure with different physical properties than the more common ruddlesden popper counterparts. however, there is a lack of understanding of material crystallization in films and its influence on the morphological/optoelectronic properties and the final photovoltaic devices. herein, we undertake in situ studies of the solidification process for aci 2d perovskite (ga)(ma)(n)pbni3n+1 (< n > = 3) from ink to solid-state semiconductor, using solvent mixture of dmso:dmf (1:10 v/v) as the solvent and link this behavior to solar cell devices. the in situ grazing-incidence x-ray scattering (giwaxs) analysis 4 reveals a complex journey through disordered sol gel precursors, intermediate phases, and ultimately to aci perovskites. the intermediate phases, including a crystalline solvate compound and the 2d ga(2)pbi(4) perovskite, provide a scaffold for the growth of the aci perovskites during thermal annealing. we identify 2d ga(2)pbi(4) to be the key intermediate phase, which is strongly influenced by the deposition technique and determines the formation of the 1d gapbi(3) byproducts and the distribution of various n phases of aci perovskites in the final films. we also confirm the presence of internal charge transfer between different n phases through transient absorption spectroscopy. the high quality aci perovskite films deposited from solvent mixture of dmso:dmf (1:10 v/v) deliver a record power conversion efficiency of 14.7% in planar solar cells and significantly enhanced long-term stability of devices in contrast to the 3d mapbi(3) counterpart. |
| WOS关键词 | SOLAR-CELLS ; HALIDE PEROVSKITES ; HIGH-EFFICIENCY ; LAYERS |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000459222100063 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372788 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Kanatzidis, Mercouri G.; Arnassian, Aram; Liu, Shengzhong Frank; Zhao, Kui |
| 作者单位 | 1.Shaanxi Normal Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Shaanxi, Peoples R China 2.Shaanxi Normal Univ, Sch Mat Sci & Engn, Shaanxi Key Lab Adv Energy Devices, Xian 710119, Shaanxi, Peoples R China 3.Shaanxi Normal Univ, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol, Xian 710119, Shaanxi, Peoples R China 4.KAUST, KAUST Solar Ctr KSC, Thuwal 239556900, Saudi Arabia 5.KAUST, Phys Sci & Engn Div PSE, Thuwal 239556900, Saudi Arabia 6.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA 7.Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA 8.Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14850 USA 9.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iChEM, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yalan,Wang, Peijun,Tang, Ming-Chun,et al. Dynamical transformation of two-dimensional perovskites with alternating cations in the interlayer space for high-performance photovoltaics[J]. Journal of the american chemical society,2019,141(6):2684-2694. |
| APA | Zhang, Yalan.,Wang, Peijun.,Tang, Ming-Chun.,Barrit, Dounya.,Ke, Weijun.,...&Zhao, Kui.(2019).Dynamical transformation of two-dimensional perovskites with alternating cations in the interlayer space for high-performance photovoltaics.Journal of the american chemical society,141(6),2684-2694. |
| MLA | Zhang, Yalan,et al."Dynamical transformation of two-dimensional perovskites with alternating cations in the interlayer space for high-performance photovoltaics".Journal of the american chemical society 141.6(2019):2684-2694. |
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来源：大连化学物理研究所
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