Results 71 to 80 of about 28,256 (297)

Structural and dielectric studies of the phase behaviour of the topological ferroelectric La1-xNdxTaO4 [PDF]

open access: yes, 2015
We thank the University of St Andrews and EPSRC (via DTG studentships to CALD and JG) for funding,The layered perovskite LaTaO4 has been prepared in its polar orthorhombic polymorphic form at ambient temperature.
Cordrey, Keith J.   +6 more
core   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

open access: yesAdvanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek   +11 more
wiley   +1 more source

Stable Sn/Pb-Based Perovskite Solar Cells with a Coherent 2D/3D Interface

open access: yesiScience, 2018
Summary: Low-band-gap metal halide perovskite semiconductor based on mixed Sn/Pb is a key component to realize high-efficiency tandem perovskite solar cells. However, the mixed perovskites are unstable in air due to the oxidation of Sn2+. To overcome the
Ziming Chen   +6 more
doaj   +1 more source

A three-order-parameter bistable magnetoelectric multiferroic metal

open access: yesNature Communications, 2020
A room temperature single-phase multiferroic with large and strongly coupled polarization and magnetization is a long-sought goal in multiferroics research.
Andrea Urru   +4 more
doaj   +1 more source

Crystal-Site-Based Artificial Neural Networks for Material Classification

open access: yesCrystals, 2021
In materials science, crystal structures are the cornerstone in the structure–property paradigm. The description of crystal compounds may be ascribed to the number of different atomic chemical environments, which are related to the Wyckoff sites.
Juan I. Gómez-Peralta   +2 more
doaj   +1 more source

Resonant X-ray Study on the Bi-Layered Perovskite Mn Oxide LaSr2Mn2O7

open access: yes, 2002
Charge and orbital ordering behaviors in the half doped bi-layered compound LaSr2Mn2O7 have been studied by resonant and non-resonant X-ray scattering.
Argyriou D. N.   +29 more
core   +1 more source

Full Bulk Spin Polarization and Intrinsic Tunnel Barriers at the Surface of Layered Manganites [PDF]

open access: yes, 2005
Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions.
Badica, Elvira   +7 more
core   +2 more sources

Reversible Photochromism in ⟨110⟩ Oriented Layered Halide Perovskite

open access: yesACS Nano, 2022
Extending halide perovskites' optoelectronic properties to stimuli-responsive chromism enables switchable optoelectronics, information display, and smart window applications. Here, we demonstrate a band gap tunability (chromism) via crystal structure transformation from three-dimensional FAPbBr3 to a ⟨110⟩ oriented FAn+2PbnBr3n+2 structure using a mono-
Anil Kanwat   +16 more
openaire   +4 more sources

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen   +12 more
wiley   +1 more source

Photo-FETs: phototransistors enabled by 2D and 0D nanomaterials [PDF]

open access: yes, 2016
The large diversity of applications in our daily lives that rely on photodetection technology requires photodetectors with distinct properties. The choice of an adequate photodetecting system depends on its application, where aspects such as spectral ...
Konstantatos, Gerasimos, Kufer, Dominik
core   +2 more sources

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