Results 41 to 50 of about 14,229 (265)

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Phase transition of SrCo0.9Fe0.1O3 electrocatalysts and their effects on oxygen evolution reaction

open access: yesSusMat, 2022
Complex metal oxide has emerged as an important class of electrocatalyst for oxygen evolution reaction (OER) because of its flexibility in the crystal phase and relative ease in the control of defect structures.
Cheng Zhang   +4 more
doaj   +1 more source

In situ probing the heating effect and phase transition in perovskite heterostructures

open access: yesMaterials & Design, 2023
Perovskite oxide heterostructures exhibit a series of correlated electronic functionalities, associated with the coupling among the lattice, charge, spin and orbital orderings. As a fundamental thermodynamic parameter, temperature measurement is critical
Haisheng Chen   +10 more
doaj   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Low Dark Current and Performance Enhanced Perovskite Photodetector by Graphene Oxide as an Interfacial Layer

open access: yesNanomaterials, 2022
Organic-inorganic hybrid perovskite photodetectors are gaining much interest recently for their high performance in photodetection, due to excellent light absorption, low cost, and ease of fabrication. Lower defect density and large grain size are always
Ali Hassan   +5 more
doaj   +1 more source

Interfacial Modulation for High‐Efficiency Large‐Area Organic Photovoltaics and Perovskite‐Organic Tandem Solar Modules

open access: yesAdvanced Functional Materials, EarlyView.
Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon   +10 more
wiley   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Electroluminescence in perovskite oxide nanocrystals [PDF]

open access: yesAIP Advances, 2020
Chemically stable and easily printable inorganic surface-emitting devices are essential for portable, disposable, outdoor-safe, and wearable information display devices. However, inorganic electroluminescent devices with both chemical stability and printability have never been realized.
Norihiro Oshime   +2 more
openaire   +2 more sources

Study on the Preparation and Denitration Performance of Ce Modified La–Mn Perovskite Catalyst

open access: yes工程科学与技术, 2021
In order to improve the denitration performance of La–Mn perovskite catalyst, a series of Ce modified perovskite La–Mn composite oxide catalysts were synthesized by citric acid sol-gel method.
Jiaxiu GUO   +5 more
doaj  

A Study of High-Sensitivity Electro-Resistance Type Pre-Annealing ZnO-Doped CsPbBr3 Perovskite Acetone Sensors

open access: yesSensors, 2023
In this work, acetone gas sensors were fabricated using pre-annealing metal oxide zinc oxide (pa-ZnO)-doped perovskite cesium lead bromide (CsPbBr3). The ZnO nanopowder, before it was doped into CsPbBr3 solution, was first put into a furnace to anneal at
Lung-Chien Chen, An-Ni Sung, Kun-Yi Lee
doaj   +1 more source

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