Results 51 to 60 of about 339,241 (209)

Thermoelectric oxides and oxynitrides with perovskite-type structure

open access: yes, 2008
Transition metal oxides and oxynitrides with perovskite-type structures are potential high temperature stable thermoelectric materials. With innovative soft chemistry synthesis procedures the crystallite size in complex oxide ceramics with perovskite ...
Logvinovich, Dmitry (author)   +4 more
core   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

open access: yesAdvanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra   +17 more
wiley   +1 more source

Sub‐nm2 Ferroelectric Domains via Charged 180° Walls in ZrO2

open access: yesAdvanced Materials, EarlyView.
Ferroelectric ZrO2${\rm ZrO}_2$ thin films host closely spaced charged 180∘$^{\circ }$ domain walls that vertically compress polar domains beyond their lateral half‐unit‐cell limit. These head‐to‐head and tail‐to‐tail walls show distinct bulk‐like structures, natural oxygen‐mediated stabilization, and highly asymmetric mobility, highlighting new ...
Nashrah Afroze   +33 more
wiley   +1 more source

Ferrocene‐Based Self‐Assembled Monolayers Enable Ultra‐High Specific Detectivity in Perovskite Photodetectors

open access: yesAdvanced Materials, EarlyView.
We report perovskite photodetectors with record specific detectivities exceeding 1013 Jones with a novel molecular design strategy to functionalize self‐assembled monolayers (SAMs) with ferrocene (Fc) derivatives. Fc‐SAM‐based devices also exhibit strong operational stability and enable data transmission rates exceeding 1 Mbps in a LiFi system ...
Edoardo Angela   +10 more
wiley   +1 more source

CaSiO3 perovskite at lower mantle pressures [PDF]

open access: yes, 2005
We investigate by first-principles the structural behavior of CaSiO3 perovskite up to lower mantle pressures. We confirm that the cubic perovskite modification is unstable at all pressures.
Price, GD   +3 more
core  

Performance of Solid Alkaline Fuel Cells Employing Layered Perovskite-Type Oxides as Electrolyte [PDF]

open access: yes, 2010
Layered perovskite-type oxides were characterized by electrochemical measurement. Five kinds of perovskite oxides (LaSr3Fe3O10, NaLaTiO4, Sr4Co1.6Ti1.4O8(OH)2 ・xH2O, RbLaNb2O7 and LaFeO3) were used as electrolyte of fuel cells.
Takeguchi, Tatsuya   +9 more
core   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

open access: yesAdvanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang   +12 more
wiley   +1 more source

Photocatalytic Properties of Ordered Double Perovskite Oxides

open access: yes, 2011
The paper was reported in the 6th International Symposium on \u22Novel Carbon Resource Sciences\u22 Nov. 12-13, 2010Ordered double perovskite oxides(A_2BB\u27O_6, AA\u27BB\u27O_6) which contained W, Ta, and Ti were synthesized, and the applicability of ...
永長, 久寛   +5 more
core  

Synthesis of Bulk Superconducting LiNbO2 Crystals Through CaH2 Reduction

open access: yesAdvanced Materials, EarlyView.
CaH2 reduction reconstructively transforms insulating LiNbO3 single crystals into superconducting bulk LiNbO2 with a critical temperature of Tc = 14.4 K. Scanning electron microscopy reveals large‐volume, high‐yield phase conversion. Magnetization measurements demonstrate a robust ∼ 77% Meissner shielding fraction, establishing bulk superconductivity ...
Ryan Paxson   +19 more
wiley   +1 more source

Nano-socketed nickel particles with enhanced coking resistance grown in situ by redox exsolution [PDF]

open access: yes, 2015
DN thanks the European Project METSAPP (FCH JU-GA 278257) for funding. We also thank NSF and EPSRC for Materials World Network funding ref EP/J018414/1.Metal particles supported on oxide surfaces are used as catalysts for a wide variety of processes in ...
Ménard, Hervé   +23 more
core   +1 more source

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