Results 191 to 200 of about 863,410 (369)

Photodegradation of 2D Ruddlesden‐Popper Perovskites: Consequences and Design Principles for Photoelectrochemical Applications

open access: yesAdvanced Science, EarlyView.
In this study, we examined the structural and morphological stability of the 2D perovskite‐phenylethylammonium lead iodide PEA(+)2PbI4 thin films in aqueous electrolytes of phenylethylammonium iodide (PEA(+)I), both in the dark and under illumination.
Manuel F. Vasquez‐Montoya   +13 more
wiley   +1 more source

Suppressing Ion Migration in Heterostructure Single Crystals for Highly Sensitive Ultra‐Stable X‐Ray Detection

open access: yesAdvanced Science, EarlyView.
This work reports a 2D heterostructure single crystal composed of two distinct inorganic frameworks, of which the ion migration is effectively inhibited by the strong interaction between organic components and inorganic layers. Such merits enable highly sensitive ultra‐stable X‐ray detection performances and highlight the potential of heterostructure ...
Yu Ma   +9 more
wiley   +1 more source

Heme/NADH Mimics Co‐Decorated Allosteric Capsules for Regulating Oxygen Activation and Upregulating Intracellular Methionine Depletion

open access: yesAdvanced Science, EarlyView.
Through modifying the switchable µ‐oxo bridged FeIII‐porphyrins moiety and NADH mimics into a metal‐organic capsule, multiple responsive manners for O2 activation, chemical oxygenation and metabolic transformation have been demonstrated for upregulating intracellular methionine depletion and accumulation of methionine sulfoxide to achieve effective ...
Chunming Ma   +5 more
wiley   +1 more source

Unveiling Charge Transfer and Recombination Dynamics in 3D/2D Heterostructure via Ultrafast Spectroscopy for Efficient Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Charge transfer and recombination dynamics at 3D/2D perovskite heterostructure have been fully investigated via combined state‐of‐the‐art ultrafast spectroscopies, aiding to design of the desired 3D/2D perovskite heterostructure and thus push 3D/2D perovskite solar cell technology forward.
Di Li   +10 more
wiley   +1 more source

On Einstein metrics [PDF]

open access: yesJournal of Differential Geometry, 1974
openaire   +3 more sources

Precursor Inhomogeneities Influence the Properties of Multimetal Oxides as Shown for LiNi0.5Mn1.5O4 Derived from Hydrothermally Synthesized Precursors

open access: yesAdvanced Science, EarlyView.
Correlative Raman and scanning electron microscopies are used for identifying compositional differences on the micrometer length scale in LiNi0.5Mn1.5O4 cathode materials, and it is shown that these compositional differences can be linked to the electrochemical signature of the material. Abstract Co‐precipitation is an attractive means for synthesizing
Simon Schauer   +4 more
wiley   +1 more source

Shear Conditioning Promotes Microvascular Endothelial Barrier Resilience in a Human BBB‐on‐a‐Chip Model of Systemic Inflammation Leading to Astrogliosis

open access: yesAdvanced Science, EarlyView.
Physiological flow (0.5 Pa) conditioning promotes resilience of an iPSC‐derived blood–brain barrier endothelium to mild systemic inflammation. In contrast, high “cytokine storm” levels induce barrier breakdown, fibrinogen leakage, and astrocyte activation, reconstituting the two‐hit injury mechanism on‐a‐chip.
Kaihua Chen   +15 more
wiley   +1 more source

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