Layered Double Perovskites

Published

July 26, 2021

Author(s)

Hayden Evans, Lingling Mao, Ram Seshadri, Anthony K. Cheetham

Abstract

Successful strategies for the design of crystalline materials with useful function are frequently based on the systematic tuning of chemical composition within a given structural family. Perovskites with the formula ABX3, perhaps the best-known example of such a family, have a vast range of elements on A, B, and X sites, which are associated with a similarly vast range of functionality. Layered double perovskites (LDPs), a subset of this family, are obtained by suitable slicing and restacking of the perovskite structure, with the additional design feature of ordered cations and/or anions. In addition to inorganic LDPs, we also discuss hybrid (organic-inorganic) LDPs here, where the A-site cation is a protonated organic amine. Several examples of inorganic LDPs are presented with a discussion of their ferroic, magnetic, and optical properties. The emerging area of hybrid LDPs is particularly rich and is leading to exciting discoveries of new compounds with unique structures and fascinating optoelectronic properties. We provide context for what is important to consider when designing new materials and conclude with a discussion of future opportunities in the broad LDP area.

Citation

Annual Review of Materials Research

Volume

51

Issue

1

Pub Type

Journals

Download Paper

https://doi.org/10.1146/annurev-matsci-092320-102133

Local Download

Keywords

Perovskites, layered, ordering, symmetry breaking

Citation

Evans, H. , Mao, L. , Seshadri, R. and Cheetham, A. (2021), Layered Double Perovskites, Annual Review of Materials Research, [online], https://doi.org/10.1146/annurev-matsci-092320-102133, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932479 (Accessed October 31, 2024)