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      CH3NH3PbI3: precise structural consequences of water absorption at ambient conditions

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          Abstract

          The crystal structure of the pristine (I) and aged (II) crystals of CH 3NH 3PbI 3(hereafter MAPbI 3) hybrid organic–inorganic lead iodide has been studied at 293 K with high-precision single-crystal X-ray diffraction using a synchrotron light source. We show that (I) and (II) are characterized by an identical tetragonal unit cell but different space groups: I422 for (I) and P4 22 12 for (II). Both space groups are subgroups of I4/ mcm, which is widely used for MAPbI 3. The main difference between (I) and (II) comes from the difference in hydrogen bonds between the MA +cation and the PbI 3framework which is the direct consequence of H 2O insertion in the aged crystal (II).

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          Synthesis and crystal chemistry of the hybrid perovskite (CH3NH3)PbI3 for solid-state sensitised solar cell applications

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            Structural Study on Cubic–Tetragonal Transition of CH3NH3PbI3

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              Bulk crystal growth of hybrid perovskite material CH3NH3PbI3

              Bulk crystal of tetragonal CH3NH3PbI3 with dimensions of centimeters grown by a temperature-lowering method in HI solution is reported for the first time.
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                Author and article information

                Journal
                ACSBDA
                Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials
                Acta Crystallogr B Struct Sci Cryst Eng Mater
                Acta Crystallogr B
                Acta Crystallogr B Struct Sci
                Acta Cryst B
                Acta Cryst B Struct Sci Cryst Eng Mater
                Acta Cryst Sect B
                Acta Cryst Sect B Struct Sci Cryst Eng Mater
                Acta Crystallogr Sect B
                Acta Crystallogr Sect B Struct Sci Cryst Eng Mater
                Acta Crystallogr Sect B Struct Sci
                International Union of Crystallography (IUCr)
                2052-5206
                October 2016
                September 16 2016
                October 01 2016
                : 72
                : 5
                : 716-722
                Article
                10.1107/S2052520616010428
                © 2016

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