Chemical Communications · 2019 · 33 citations · 20 references
Natural SciencesChemistryMaterials ScienceCrystal StructureInorganic ChemistrySolid-state ChemistryCrystal ChemistryCrystal SystemsCrystallographyHybrid MaterialsInorganic MaterialsPerovskite MaterialsCrystallographic CharacterizationHydrogen BondingHydrogen Bonding EffectsOrganic-inorganic Hybrid PerovskitesPerovskite Crystal Structure
The hybrid perovskites (ImH)(GuH)PbBr4 and (TzH)(GuH)PbBr4 (ImH+ = imidazolium, GuH+ = guanidinium, TzH+ = 1,2,4-triazolium) both adopt (110)-oriented layer structures. However, the GuH+ cation adopts differing crystallographic sites in the two structures (intra-layer versus inter-layer); this is discussed in terms of the sizes of the organic cations and their hydrogen-bonding preferences.
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Steric engineering of metal-halide perovskites with tunable optical band gaps
Marina R. Filip, Giles E. Eperon, Henry J. Snaith et al. · Nature Communications · 2014 · 1.1K citations · Full text