New Variants of (110)‐Oriented Layered Lead Bromide Perovskites, Templated by Formamidinium or Pyrazolium
Yuanyuan Guo, Clement Elliott, Jason A. McNulty, David B. Cordes, Alexandra M. Z. Slawin, Philip Lightfoot
Abstract
Abstract Four new hybrid lead(II) halide perovskites, γ‐(FA) 2 PbBr 4 , (FA) 1.5 (AA) 0.5 PbBr 4 , (PY)(GA)PbBr 4 and (PY)(TZ)PbBr 4 ((FA)=formamidinium, (AA)=acetamidinium, (PY)=pyrazolium, (GA)=guanidinium and (TZ)=1,2,3‐triazolium), adopt (110)‐oriented layered perovskite structures. While (PY) is found to template the formation of ‘conventional’ (110)‐oriented structure types (i. e. containing staggered [PbBr 4 ] ∞ layers), (FA) is shown to facilitate formation of much less common variants based 3 : 1 ordering of the interlayer species or 3×2 step‐like corrugation of the perovskite‐like layers themselves.
Topics & Concepts
FormamidiniumChemistryHalidePerovskite (structure)CrystallographyBromideInorganic chemistryPerovskite Materials and ApplicationsPolyoxometalates: Synthesis and ApplicationsLayered Double Hydroxides Synthesis and Applications