In this paper, we review recent progress and new challenges in the area of oxyfluoride perovskite, especially layered systems including Ruddlesden-Popper (RP), Dion-Jacobson (DJ) and Aurivillius (AV) type perovskite families. It is difficult to synthesize oxyfluoride perovskite using a conventional solid-state reaction because of the high chemical stability of the simple fluoride starting mater...

The defect tolerance of halide perovskite materials has led to efficient optoelectronic devices based on thin-film geometries with unprecedented speed. Moreover, it has motivated research on perovskite nanowires because surface recombination continues to be a major obstacle in realizing efficient nanowire devices. Recently, ordered vertical arrays of perovskite nanowires have been realized, whi...

This work introduces an aprotic sulfonium buffer layer at the nickel oxide–perovskite heterojunction to eliminate multi-step photochemical reactions, which leads inverted perovskite solar cells with long-term operational stability.

This cover page depicts a new type of reconfigurable perovskite light emitting electrochemic al (PeLEC) device, in which the external ions, such as Li+ added via ionic salt, play role internal mobile dopants forming p–i–n structure and electrical double layers at interfaces, strongly enhancing charge injection. concept is described article number 2001715 by Dmitry Gets, Jason D. Slinker, Anvar ...

Pb(Zn1/3Nb2/3)O3 (PZN) is a well known relaxor ferroelectric with excellent dielectric properties for capacitor applications and electromechanical properties for sensor and actuator applications. The perovskite structure stabilization of PZN based ceramics and their respective thin films has limited their applications in these devices. The crystallization behavior and the development of the per...

A low temperature (<100 °C), flexible solar cell based on an organic-inorganic hybrid CH3NH3PbI3 perovskite-fullerene planar heterojunction (PHJ) is successfully demonstrated. In this manuscript, we study the effects of energy level offset between a solar absorber (organic-inorganic hybrid CH3NH3PbI3 perovskite) and the selective contact materials on the photovoltaic behaviors of the planar org...

Upper critical field H c2 and Hall coefficient R H in superconducting per-ovskite M gCN i 3 have been studied. The normal state ρ(T) behavior is similar to that observed in oxide perovskite (Ba, K)BiO 3 (BKBO), in which ρ(T) fits well curve predicted by Bloch-Grüneisen theory consistently with electron-phonon scattering. H c2 (T), determined from the onset of the resis-tive superconducting tran...

A set of multicomponent perovskite oxide nanoparticles based on La1-xSrxCo1-yFeyO3-δ(LSCF) were prepared by a simple chemical precipitation method for application in low temperature solid oxide fuel cells (LT-SOFC) as cathode materials.  The precursor materials used in this synthesis were lanthanum nitrate hexahydrate [La(NO3)<su...

We review recent developments in the epitaxial integration of multifunctional oxide thin film heterostructures on silicon (Si). Perovskite oxides have been extensively studied for use in multifunctional devices due to a wide range of functional properties. To realize multifunctional oxide devices, these multifunctional films should be integrated directly on Si, maintaining high crystalline qual...