Results 131 to 140 of about 43,965 (251)

Balancing Crystallization Kinetics and Lattice Strain Enables Thermally Stable Slot‐Die‐Coated Narrow‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Unbalanced crystallization in mixed Sn‐Pb perovskites causes film defects and instability. CsPbI3 nanocrystals serve as nucleation seeds to regulate growth during slot‐die coating. Resulting solar cells retain 80% efficiency after nine thermal cycles. Operando GIWAXS confirms suppressed microstrain and lattice distortion, demonstrating that synergistic
Xiaojing Ci   +10 more
wiley   +1 more source

Approaching Landauer's limit in a single superconducting vortex memory bit. [PDF]

open access: yesNat Commun
Fridman N   +8 more
europepmc   +1 more source

Coral‐Biomimetic Structured Organic Electro‐Oxidations With Exceptional High‐Current Catalytic Performance

open access: yesAdvanced Science, EarlyView.
A strategy for energy‐efficient hydrogen production coupled with biomass valorization via organic electrooxidation reactions is reported. A bio‐inspired multiscale coral‐like heterostructure catalyst delivers record‐breaking OEOR performance enabled by a dual‐copper synergistic Cu+/Cu2+–Ni mechanism, establishing a universal architectural and ...
Chaoqun Pei   +17 more
wiley   +1 more source

Optical Access to Dark Excitons Via Spin–Phonon Fano Interference

open access: yesAdvanced Science, EarlyView.
Dark excitons in quantum dots neither absorb nor emit light and stay hidden from optical spectroscopy. Quantum interference now reveals them: light scattered by acoustic phonons interferes with a phonon‐assisted spin flip between bright and dark exciton, carving a Fano dip into the spectrum whose position gives the bright–dark splitting. Magnetic field,
Janina J. Schindler   +7 more
wiley   +1 more source

Product‐Reshaped Gas‐Phase Hydrodynamics Govern CO2 Electrolysis in Gas Diffusion Electrodes

open access: yesAdvanced Science, EarlyView.
In gas‐fed CO2${\rm CO}_2$ electrolysers, the gas phase is part of the electrochemical response. As gaseous products form, they change gas composition and flow, which in turn affects CO2${\rm CO}_2$ delivery and CO intermediate availability. This feedback changes the reaction environment needed for multicarbon formation, becoming unavoidable as ...
Abdullah A. Alyahya   +6 more
wiley   +1 more source

Computational nanoscience

open access: yesChemistry Central Journal, 2009
Herges R
doaj   +1 more source

Engineering a Bioelectronic Hybrid Heart with Integrated Sensing and Electrical Modulation

open access: yesAdvanced Science, EarlyView.
A bioelectronic hybrid heart is engineered by integrating iPSC‐derived cardiomyocytes, a decellularized cardiac scaffold, a cell‐laden ECM coating, and a flexible electronic mesh. The embedded electrodes enable real‐time recording of spontaneous electrical activity and localized stimulation, allowing controlled pacing and modulation of activation ...
Itai Cabilly   +7 more
wiley   +1 more source

Correction: Technological innovation in healthcare: challenges, opportunities and impact on sustainability. [PDF]

open access: yesFront Digit Health
Vallet-Regí M   +8 more
europepmc   +1 more source

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