Results 111 to 120 of about 237,520 (386)

Engineering Strategies for 2D Layered Tin Halide Perovskite Field‐Effect Transistors

open access: yesAdvanced Functional Materials, EarlyView.
2D halide perovskites are promising candidates for field‐effect transistor (FET) applications due to their high stability and suppressed ion migration in the presence of bulky organic spacers. This review systematically summarizes the optimization engineering strategies of 2D perovskite FETs and future challenges, which provide guidance for developing ...
Shuanglong Wang   +4 more
wiley   +1 more source

Radiative properties and QPOs around charged black hole in Kalb–Ramond gravity

open access: yesEuropean Physical Journal C: Particles and Fields
Studies of accretion disc luminosities and quasiperiodic oscillations around black holes may help us understand the gravitational properties of black hole spacetime.
Shokhzod Jumaniyozov   +5 more
doaj   +1 more source

Nuclear Activity in the Low-metallicity Dwarf Galaxy SDSS J0944-0038 : A Glimpse into the Primordial Universe

open access: yesThe Astrophysical Journal Letters, 2023
Local low-metallicity dwarf galaxies are relics of the early universe and are thought to hold clues into the origins of supermassive black holes. While recent studies are uncovering a growing population of active galactic nuclei (AGNs) in dwarf galaxies,
Michael Reefe   +13 more
doaj   +1 more source

Testing the Kerr nature of supermassive and intermediate-mass black hole binaries using spin-induced multipole moment measurements [PDF]

open access: yesClassical and quantum gravity, 2019
The gravitational wave measurements of spin-induced multipole moment coefficients of a binary black hole system can be used to distinguish black holes from other compact objects [].
N. Krishnendu, Anjali B. Yelikar
semanticscholar   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

A Tale of Two Black Holes: Multiband Gravitational-wave Measurement of Recoil Kicks

open access: yesThe Astrophysical Journal
The nonlinear dynamics of General Relativity leave their imprint on remnants of black hole mergers in the form of a recoil “kick.” The kick has profound astrophysical implications across the black hole mass spectrum, from stellar-mass to supermassive ...
Shobhit Ranjan   +4 more
doaj   +1 more source

The Formation of Intermediate-mass Black Holes in Galactic Nuclei

open access: yesThe Astrophysical Journal Letters, 2022
Abstract Most stellar evolution models predict that black holes (BHs) should not exist above approximately 50–70 M ⊙, the lower limit of the pair-instability mass gap. However, recent LIGO/Virgo detections indicate the existence of BHs with masses at and above this threshold.
Sanaea C. Rose   +3 more
openaire   +2 more sources

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab   +6 more
wiley   +1 more source

Spectrophotometric Reverberation Mapping of Intermediate-mass Black Hole NGC 4395

open access: yesThe Astrophysical Journal
Understanding the origins of massive black hole seeds and their coevolution with their host galaxy requires studying intermediate-mass black holes (IMBHs) and estimating their mass.
Shivangi Pandey   +10 more
doaj   +1 more source

Breaking the Capacity Limit for WO3 Anode‐Based Li‐Ion Batteries Using Photo‐Assisted Charging

open access: yesAdvanced Functional Materials, EarlyView.
This image illustrates a photo‐assisted rechargeable lithium‐ion battery. (a) shows the battery structure, where light enhances electron‐hole generation in the anode, boosting ion flow. (b) compares discharging performance, revealing over 60% higher capacity under light compared to dark conditions, showcasing the benefit of light‐assisted energy ...
Rabia Khatoon   +7 more
wiley   +1 more source

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