Synthesis, post-synthetic modification and stability of a 2D styryl ammonium lead iodide hybrid material

Abstract

A hybrid lead iodide material (HP1) having 4-vinylphenylene ammonium as the organic cation allows post-synthetic modification by radical copolymerization with styrene.

A Tunable Electrochemical Strategy toward an All-Inorganic CsPbBr3 Perovskite

“…Although the main diffraction peaks were all shifted to lower degrees, unfortunately, the diffraction patterns were different from known crystal diffraction patterns (such as PbI 2 ), which could not be found in existing databases. However, a 2D-structured hybrid lead iodide perovskite named HP1 has a similar XRD pattern that has been reported in the literature, which corresponded to PbI 2.5 (4-styryl ammonium) 0.5 . XPS was measured in order to further study their electronic structures.…”

“…However, a 2D-structured hybrid lead iodide perovskite named HP1 has a similar XRD pattern that has been reported in the literature, which corresponded to PbI 2.5 (4-styryl ammonium) 0.5 . 43 XPS was measured in order to further study their electronic structures. As shown in Figure 7b, with the addition of HI and NH 4 I, the characteristic peaks of I 3d and 4d levels appeared in the corresponding spectra at 619.93 and 49.85 eV, while the Br 3d peak gradually disappeared.…”