Results 31 to 40 of about 1,558 (181)

Pressure driven rotational isomerism in 2D hybrid perovskites

open access: yesNature Communications, 2023
Multilayers comprising alternating soft and hard layers offer enhanced toughness compared to all-hard structures. Here authors reveal how the hard and soft components in Ruddlesden–Popper perovskites work cooperatively to resist deformation under ...
Tingting Yin   +10 more
doaj   +1 more source

Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
Sr3Ti2O7 Ruddlesden Popper (RP) compound offers promising applications for electronic materials, in which the modification of the electronic band structure of the respective crystal significantly affects its functionalities.
Yulia Eka Putri   +3 more
doaj   +1 more source

The Impact of Stoichiometry on the Photophysical Properties of Ruddlesden–Popper Perovskites [PDF]

open access: yesAdvanced Functional Materials, 2019
Abstract2D Ruddlesden–Popper perovskites are interesting for a variety of applications owing to their tunable optical properties and their excellent ambient stability. As these materials are processable from solution, they hold the promise of procuring flexible and cost‐effective films through large‐scale fabrication techniques.
Herman Duim   +4 more
openaire   +2 more sources

Selective enhancement of optical nonlinearity in two-dimensional organic-inorganic lead iodide perovskites

open access: yesNature Communications, 2017
Hybrid metal halide perovskites can exhibit improved optoelectronic properties when their dimensionality is reduced. Here, Saouma et al. study the enhancement of third-order nonlinearities in two-dimensional lead iodide perovskites in the Ruddlesden ...
F. O. Saouma   +4 more
doaj   +1 more source

Extrinsic nature of the broad photoluminescence in lead iodide-based Ruddlesden–Popper perovskites

open access: yesNature Communications, 2020
The Ruddlesden–Popper type of halide perovskites are gaining interest but the origin of their broad band emission remains elusive. Here Kahmann et al. suggest that in-gap states, instead of the commonly believed self-trapped excitons, are responsible for
Simon Kahmann   +4 more
doaj   +1 more source

Spin-polarized electronic and magnetic properties of Ruddlesden-Popper Nd2MO4 (M = Sc and Y) compounds

open access: yesResults in Physics, 2021
The first principle calculations on the structural, electronic structure as well as the magnetic properties of Ruddlesden-Popper Nd2MO4 (M = Sc and Y) compounds were accomplished by using the full-potential linearized augmented plane waves with local ...
Mohammed El Amine Monir   +4 more
doaj   +1 more source

Unusual synergistic effect in layered Ruddlesden−Popper oxide enables ultrafast hydrogen evolution

open access: yesNature Communications, 2019
Water may serve as a renewable hydrogen fuel source to replace fossil fuels, although such electrolysis requires highly active catalysts. Here, authors explore Ruddlesden−Popper oxides as hydrogen evolution electrocatalysts that feature an unusual ...
Yinlong Zhu   +10 more
doaj   +1 more source

Diverse Polymorphism in Ruddlesden-Popper Chalcogenides

open access: yesPhysical Review Letters
Ruddlesden-Popper (RP) chalcogenides are stable, non-toxic candidates for optoelectronic or thermoelectric applications. The structural diversity of RP oxides is already exploited to tune properties or achieve more advanced functionalities like multiferroicity, however, little is known about the structural evolution of RP chalcogenides.
Prakriti Kayastha   +3 more
openaire   +2 more sources

Band gap evolution in Ruddlesden-Popper phases [PDF]

open access: yesPhysical Review Materials, 2019
We investigate the variation of the band gap across the Ruddlesden-Popper (RP) series (An+1BnX3n+1) in model chalcogenide, oxide, and halide materials to understand the factors influencing band gap evolution. In contrast to the oxides and halides, we find the band gap of the chalcogenides evolve differently with the thickness of the perovskite blocks ...
Wei Li   +6 more
openaire   +2 more sources

Room-temperature ferroelectricity in A-site ordered Ruddlesden-Popper Li2CaTa2O7 ceramics

open access: yesJournal of Materiomics, 2020
In the present work, the crystal structure, ferroelectric and dielectric properties of the dense single-phase Li2CaTa2O7 ceramics with A-site ordered double-layer Ruddlesden-Popper structures have been investigated by the experiments and first-principles
B.H. Zhang   +4 more
doaj   +1 more source

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