Results 111 to 120 of about 1,762,916 (284)

Electron‐Beam Enables Spatially Resolved Defect‐Mediated Work Function Modulation in FAPbI3 Perovskite Thin Films

open access: yesAdvanced Science, EarlyView.
Electron‐beam irradiation enables defect‐mediated work function modulation in metal halide perovskites by regulating interstitial iodides. This approach allows continuous Fermi‐level tuning and spatially resolved formation of lateral surface‐potential‐defined junctions with built‐in potential.
Hyeonho Park   +9 more
wiley   +1 more source

Predictions for New Horizons’ SWAP Measurements Downstream of the Heliospheric Termination Shock

open access: yesThe Astrophysical Journal Letters
Currently ∼62 au from the Sun, the New Horizons spacecraft is en route to the outer heliosphere boundaries. The first boundary it will encounter is the heliospheric termination shock (HTS), where the solar wind ion (SWI) and interstellar pickup ion (PUI)
E. J. Zirnstein   +11 more
doaj   +1 more source

Permanent Oxidative Dipole Engineering in Quinoline COFs for Boosting Exciton Dissociation and Oxygen Activation in H2O2 Photosynthesis

open access: yesAdvanced Science, EarlyView.
Permanent oxidative dipole (POD) engineering overcomes the electronic uniformity of quinoline‐linked COFs. By enhancing the dipole moment to 2.08 D and lowering exciton binding energy to 20.3 meV, it constructs a robust built‐in electric field and spatially decoupled redox centers. This bypasses inherent kinetic bottlenecks, achieving a 4569 µmol g−1 h−
Yong‐Quan Wu   +2 more
wiley   +1 more source

Dynamics of the Upwind Heliosphere Due to Data-driven Solar Wind and Magnetic Field Variations and Implications for Wave Propagation into the Very Local Interstellar Medium

open access: yesThe Astrophysical Journal
We introduce an updated, time-dependent treatment to the split-tail (“croissant-like”) heliosphere model with data-driven solar wind conditions at 1 au to study the evolution of the heliosphere with solar-cycle variations in plasma speed, plasma density,
C. Onubogu   +6 more
doaj   +1 more source

Bridging Performance and Fate: A Framework for Sustainable, Composite‐Based Flexible Electronic Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Composite‐based flexible electronics integrate biodegradable polymers, conductive networks, and multilayer device architectures to balance electrical performance, mechanical durability, and controlled degradation. Interfacial engineering and encapsulation regulate transport stability and operational lifetime, while programmed disassembly enables ...
Sayam, Sangho Cho
wiley   +1 more source

Large-scale Field-aligned Flows in the Heliosheath

open access: yesThe Astrophysical Journal
We use a state-of-the-art 3D MHD simulation to show that large-scale thermal pressure gradients in the heliosheath drive suprathermal particles (pickup ions with 1–5 keV) to stream along magnetic field lines faster than the cold bulk solar wind.
Merav Opher   +9 more
doaj   +1 more source

Environmental Effects on RRAM Cells Based on 2D Halide Perovskite Materials

open access: yesAdvanced Electronic Materials, EarlyView.
RRAM offers high speed, scalability, and low power, positioning it as a next‐generation non‐volatile memory. Two‐dimensional halide perovskites show promise due to tunable optoelectronic properties and flexible processing but suffer from environmental sensitivity. This review examines degradation from humidity, temperature, light, and strain, discusses
Mojtaba Joodaki   +3 more
wiley   +1 more source

The Production of Anomalous Cosmic Rays by the Solar Wind Termination Shock

open access: yes, 1999
We have modeled the injection and acceleration of pickup ions at the solar wind termination shock and investigated the parameters needed to produce the observed Anomalous Cosmic Ray (ACR) fluxes. A non-linear Monte Carlo technique was employed which in effect solves the Boltzmann equation and is not restricted to near isotropic particle distribution ...
Jones, Frank C.   +2 more
openaire   +2 more sources

Incorporation of Extrinsic Alkali Cations Modulates Ion Migration and Hysteresis in Lateral MAPbBr3 Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Extrinsic alkali cations regulate field‐driven ion migration and hysteresis in lateral MAPbBr3 devices. Combined electrical measurements and DFT calculations reveal distinct ion‐dependent transport behaviors, with Li+ producing the strongest modulation due to its lower migration barrier.
Hongxin Yuan   +10 more
wiley   +1 more source

THE GLOBAL SOLAR WIND BETWEEN 1 AU AND THE TERMINATION SHOCK

open access: yesThe Astrophysical Journal, 2010
This paper studies the global solar wind between 1 AU and the termination shock, taking into account the highly latitude dependent solar wind at the 1 AU boundary and the ionization of interstellar neutral hydrogen. A system of two-fluid magnetohydrodynamics equations governs the flow of solar wind plasma; the conditions of the solar wind at 1 AU are ...
openaire   +1 more source

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