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New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH 2 ) 3 )(CH 3 NH 3 ) n Pb n I 3 n +1 : Structure, Properties, and Photovoltaic Performance

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Figure

Figure  8.  (a)  Planar  heterojunction  solar  cell  structure  employing  (GA)(MA) 3 Pb 3 I 10  as  a  light  absorber
Figure 5  1.0 0.8 0.6 0.4 0.2 0.0500550600650700750800PL emission /nm1/n2 BA2MAn-1PbnI3n+1 GAMAnPbnI3n+1 2.42.221.81.6 PL emission /eV5006007000.00.20.40.60.81.0 GAMAPbI4 BA2PbI4Wavelength /nmPL Intensity5006007000.00.20.40.60.81.0Wavelength /nmWavelength
Table 1. Structural configurations of the three types of <100> 2D perovskites.
Table 2. Crystal data and structure refinement for GAMA n Pb n I 3n+1  (n = 1-3) at 293 K
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