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The interchange between hybrid Mn(Ⅱ) chloride perovskite single crystals

Dianxing Ju  Yangyang Dang  Xutang Tao  
【摘要】:Organic-inorganic hybrid single crystals demonstrate special challenges and opportunities with respect to potential applications in many optoelectronic fields,as well as for the observation of interesting physical phenomena.Here,two kinds of hybrid Mn(Ⅱ) chloride perovskite single crystals were grown by slow evaporation method from different aqueous and hydrochloric acid solution with stoichiometric mixture of N(CH_3)_4Cl and MnCl_2·4H_2O at room temperature.Their crystal structures exhibit the orthorhombic(CH_3)_8N_2MnCl_4 with space group Pnma and hexagonal(CH_3)_4NMnCl_3 with space group P63/m by X-ray single-crystal diffraction analysis,respectively,as is shown in Figure 1.Interestingly,(CH_3)_8N_2MnCl_4 and(CH_3)_4NMnCl_3 are reversible via different condition in ambient atmosphere.Moreover,both single-crystals display intense green and red luminescence with quantum yield of 86.11% and 87.59% under UV wavelength excitation,which is ascribed to the different coordination environment of Mn~(2+).
【作者单位】:State Key Laboratory of Crystal Materials,Shandong University Key Laboratory of Functional Crystal Materials and Device (Shandong University,Ministry of Education)
【分类号】:O76
【正文快照】:
Figure 1 Two kinds of single-crystals and their crystal structure.The interchange between hybrid Mn(Ⅱ) chloride perovskite single crystals@Dianxing Ju$State Key Laboratory of Crystal Materials,Shandong University!No.27 Shanda South Road,Jinan,250100,Chi

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