Results 41 to 50 of about 45,325 (317)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Electronic spin state of ferric iron in Al-bearing perovskite in the lower mantle

open access: yes, 2005
We investigate the effect of pressure on the electronic spin state of ferric iron on Al-bearing MgSiO3-perovskite using first-principle computations. Ferric iron (6.25 mol%) and Al ( 6.25 mol%) substitute for Mg and Si respectively.
Price, GD   +11 more
core   +1 more source

Enhanced Magnetic Properties of BiFeO3 Thin Films by Doping: Analysis of Structure and Morphology

open access: yesNanomaterials, 2018
The improvement of ferromagnetic properties is critical for the practical application of multiferroic materials, to be exact, BiFeO3 (BFO). Herein, we have investigated the evolution in the structure and morphology of Ho or/and Mn-doped thin films and ...
Yilin Zhang   +9 more
doaj   +1 more source

Perovskite/Si tandem solar cells: Fundamentals, advances, challenges, and novel applications

open access: yesSusMat, 2021
The world record device efficiency of single‐junction solar cells based on organic–inorganic hybrid perovskites has reached 25.5%. Further improvement in device power conversion efficiency (PCE) can be achieved by either optimizing perovskite films or ...
Yuanhang Cheng, Liming Ding
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Synthesis and electrochemical properties of LiyM1-xCaxMnO3 (M = Pr, Eu) solid solutions

open access: yesФізика і хімія твердого тіла, 2022
New Li-containing solid solutions LiyM1-xCaxMnO3 (M = Pr and Eu) were synthesized by electrochemical lithiation of the ceramics with perovskite structure.
V. Kordan   +3 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

High energy density polymer nanocomposites with Y-doped barium strontium titanate nanoparticles as fillers

open access: yesIET Nanodielectrics, 2018
Dielectric nanocomposites with an enhanced energy density are highly desired in modern electronic and electrical power systems. In this study, the authors developed a new flexible dielectric nanocomposite thin film using Y-doped barium strontium titanate
Yu-Chen Lu   +5 more
doaj   +1 more source

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

Full‐Color n‐i‐p Perovskite Light‐Emitting Diodes Based on SnO2

open access: yesAdvanced Electronic Materials
Perovskite light‐emitting diodes (LEDs) have achieved their highest efficiency with an n‐i‐p device structure, utilizing n‐type ZnO as the electron transport layer. The exceptional device efficiency is highly dependent on the interfacial reaction between
Jianhong Wu   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy