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.
keywords
STRUCTURAL PHASE-TRANSITIONS; HIGH-TEMPERATURE FERROELECTRICITY; LIGHT-EMITTING-DIODES; MOLECULAR PEROVSKITE; DIELECTRIC-CONSTANT; THIN-FILMS; HALIDE PEROVSKITES; CH3NH3PBI3; STATE; MICROSCOPY
subject category
Chemistry
authors
Xu, WJ; Kopyl, S; Kholkin, A; Rocha, J
our authors
Andrei Kholkin
Retired Researcher
João Rocha
Full Professor
Svitlana Kopyl
Researcher
Wei-Jian Xu
Junior Researcheracknowledgements
This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, FCT Ref. UID/CTM/50011/2019, financed by national funds through the FCT/MCTES. It is also funded by national funds (OE), through FCT - Fundacao para a Ciencia e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree - Law 57/2016, of August 29, changed by Law 57/2017, of July 19. S.K. and A.K. were partly supported by FCT through the project SeIfMED (POCI-01-0145-FEDER-031132) and POCI-01-0247-FEDER-007678 SGH Smart Green Homes. Part of the work was supported by the Government of Russian Federation (Act 211, Agreement 02.A03.0006).