title: Hybrid perovskite resulting from the solid-state reaction between the organic cations and perovskite layers of alpha1-(Br-(CH(2))(2)-NH(3))(2)PbI(4).
abstract: The alpha1-(Br-(CH(2))(2)-NH(3))(2)PbI(4) hybrid perovskite undergoes a solid-state transformation, that is, the reaction between the organic cations and the perovskite layers to give the new hybrid perovskite (Br-(CH(2))(2)-NH(3))(2-x)(I-(CH(2))(2)-NH(3))(x)PbBr(x)I(4-x), based on mixed halide inorganic layers. This transformation has been followed by a conventional powder X-ray diffraction system equipped with a super speed detector, and both solid-state (13)C NMR and ESI/MS measurements have been adopted in the estimation of the rate of halide substitution. The first reaction step leads to the special composition of x approximately 1 (A phase), while the complete substitution is not achieved even at elevated temperature (x(max) approximately 1.85 (B phase)). This unprecedented solid-state reaction between organic and inorganic components of a hybrid perovskite can be considered as a completely new strategy to achieve interesting hybrid perovskites.
authors.affiliation: Laboratoire de Chimie, Ingénierie Moléculaire et Matériaux d'Angers, UMR-CNRS 6200, Université d'Angers, 2 Bd Lavoisier, 49045 Angers, France.
authors.forename: Sebastien
authors.initials: S
authors.lastname: Sourisseau
authors.forename: Nicolas
authors.initials: N
authors.lastname: Louvain
authors.forename: Wenhua
authors.initials: W
authors.lastname: Bi
authors.forename: Nicolas
authors.initials: N
authors.lastname: Mercier
authors.forename: David
authors.initials: D
authors.lastname: Rondeau
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Buzaré
authors.forename: Christophe
authors.initials: C
authors.lastname: Legein