Hybrid organic-inorganic perovskites: Polar properties and applications

authors	Xu, WJ; Kopyl, S; Kholkin, A; Rocha, J
nationality	International
journal	COORDINATION CHEMISTRY REVIEWS
author keywords	Hybrid perovskites; Polar phases; Ferroelectricity; Piezoelectricity; Pyroelectricity
keywords	STRUCTURAL PHASE-TRANSITIONS; HIGH-TEMPERATURE FERROELECTRICITY; LIGHT-EMITTING-DIODES; MOLECULAR PEROVSKITE; DIELECTRIC-CONSTANT; THIN-FILMS; HALIDE PEROVSKITES; CH3NH3PBI3; STATE; MICROSCOPY
abstract	Inorganic perovskite materials such as SrTiO3, BaTiO3, and Pb(Zr,Ti)O-3 have been widely used in the past because of their excellent dielectric, ferroelectric, piezoelectric and pyroelectric properties used in numerous applications. Recently, hybrid organic- inorganic perovskites (HOIPs) have emerged as a promising class of materials for photovoltaic (and more generally optoelectronic) applications. With their help, photovoltaic solar cells have achieved large power conversion efficiencies, in excess of 20%, within a very short time due to unique combinations of materials parameters. On the other hand, many of these materials are polar and, thus, viable substitutes for classical inorganic perovskites. In this Review we describe the origin of polar properties in several classes of HOIPs (both single crystals and thin films), present a comprehensive account of their piezo-, ferro- and pyroelectric responses, and discuss their possible applications as capacitors, memory elements, piezoelectric transducers and pyroelectric sensors. (C) 2019 Elsevier B.V. All rights reserved.
publisher	ELSEVIER SCIENCE SA
issn	0010-8545
isbn	1873-3840
year published	2019
volume	387
beginning page	398
ending page	414
digital object identifier (doi)	10.1016/j.ccr.2019.02.012
web of science category	Chemistry, Inorganic & Nuclear
subject category	Chemistry
unique article identifier	WOS:000463125500018