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Identification and characterization of a new intermediate to obtain high quality perovskite films with hydrogen halides as additives

文献类型：期刊论文

作者Duan, Bin1,2; Ren, Yingke3; Xu, Yafeng1,2; Chen, Wenyong1,2; Ye, Qing1,2; Huang, Yang1; Zhu, Jun1; Dai, Songyuan1,3
刊名INORGANIC CHEMISTRY FRONTIERS
出版日期2017-03-01
卷号4期号:3页码:473-480
DOI10.1039/c6qi00492j
文献子类Article
英文摘要High quality perovskite films were fabricated from different precursor solutions containing a certain proportion of different hydrogen halides. An anti-solvent, toluene, was used here to isolate an intermediate from the perovskite precursor solution to reveal the impact of the hydrogen halides on the crystallization of perovskite films. From the Fourier transform infrared spectra we found that the stretch vibration of C=O for pure N,N-dimethylformamide (DMF) appeared at 1663 cm(-1) ,which was shifted to a smaller wavenumber while reacting DMF with CH3NH3I (MAI) + PbI2 and MAI + PbI2 + HX (X = Cl, Br, I). Moreover, the appearance of X-ray diffraction (XRD) peaks at low angles (near 8 degrees) as well as some small angle shift showed that the MAI-PbI2-DMF-xHX (X = Cl, Br, I) intermediate was formed, which benefits perovskite crystallization because the formation of the intermediate will avoid a rapid reaction between MAI and PbI2. What's more, the solubility of the precursor can be improved by adding hydrogen halides. By adding a certain amount of hydrogen halide into the one-step perovskite precursor solution we can obtain pin-hole free and almost no defect films. Transient absorption (TA) was carried out to investigate the charge recombination in intrinsic perovskite films and perovskite devices, giving some reasonable interpretations.
WOS关键词SOLUTION-PROCESSED PEROVSKITE ; TITANIUM-DIOXIDE PHOTOANODES ; HETEROJUNCTION SOLAR-CELLS ; CH3NH3PBI3 PEROVSKITE ; CHARGE-TRANSFER ; EXCITED-STATE ; EFFICIENT ; DYNAMICS ; IODIDE ; RECOMBINATION
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000398182200009
资助机构National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; BIC ; BIC ; BIC ; BIC ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; 2015CB932200) ; 2015CB932200) ; 2015CB932200) ; 2015CB932200) ; National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Basic Research Program of China(2016YFA0202400 ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; National Natural Science Foundation of China(21403247) ; BIC ; BIC ; BIC ; BIC ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; Chinese Academy of Sciences(GJHZ1607) ; 2015CB932200) ; 2015CB932200) ; 2015CB932200) ; 2015CB932200)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/32903]  
专题合肥物质科学研究院_应用技术研究所
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Novel Thin Film Solar Cells, Hefei 230088, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.North China Elect Power Univ, Beijing Key Lab Novel Thin Film Solar Cells, Beijing 102206, Peoples R China
推荐引用方式
GB/T 7714		 Duan, Bin,Ren, Yingke,Xu, Yafeng,et al. Identification and characterization of a new intermediate to obtain high quality perovskite films with hydrogen halides as additives[J]. INORGANIC CHEMISTRY FRONTIERS,2017,4(3):473-480.
APA Duan, Bin.,Ren, Yingke.,Xu, Yafeng.,Chen, Wenyong.,Ye, Qing.,...&Dai, Songyuan.(2017).Identification and characterization of a new intermediate to obtain high quality perovskite films with hydrogen halides as additives.INORGANIC CHEMISTRY FRONTIERS,4(3),473-480.
MLA Duan, Bin,et al."Identification and characterization of a new intermediate to obtain high quality perovskite films with hydrogen halides as additives".INORGANIC CHEMISTRY FRONTIERS 4.3(2017):473-480.

入库方式： OAI收割

来源：合肥物质科学研究院

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