Tunable bandgap and luminescence characters in single-phase two-dimensional perovskite AVA2PbCl Br4- alloys

Regulation strategy of white emission from organic–inorganic hybrid metal halide perovskites

“…13d–g). 117 Karunadasa et al synthesized three OIHPs: (EDBE)[PbX 4 ] ( x = Cl, Br and I) (EDBE = 2,2′-(ethylenedioxy)bis(ethylammonium), 36 in Fig. 4).…”

“…13d-g). 117 Lin et al reported a series of white-light emitting 2D mixedhalide perovskites: (PEA) 2 PbBr x Cl 4−x (0 < x < 4) (PEA = phenylethylamine, 3 in Fig. 4).…”

Synthesis of centimeter-size two-dimensional hybrid perovskite single crystals with tunable, pure, and stable luminescence

“…In previous reports, 25,34,35,44,45 the halide content in MHPs was assumed to be the same as that in the precursor solutions and the small composition deviation was ignored, which might have introduced errors in the study of MHP alloys. Consequently, the composition of the products would be inaccurate due to the ignored deviation and the decision on property would be incorrect given that the property of MHPs highly depends on their composition.…”

Controlling Phase Transitions in Two-Dimensional Perovskites through Organic Cation Alloying

“…. In fact, many of the most efficient perovskite solar cell materials are blends of multiple A-site cations and halides. − For 2D perovskites, the electronic properties also depend on the ratio of halides. ,, Yet, far fewer studies have focused on blending different large organic cations. Yan et al discovered that mixing alkyl and aryl cations results in co-crystallization of the organic cations and improved chiroptical properties .…”