Results 191 to 200 of about 796,323 (348)
Derivation of the Entropy-Area relation for the Extremal Black Hole in Four Dimensions [PDF]
, 2007 B. B. Deo, Pravat Kumar Jena
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Advanced Materials, EarlyView.In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal +9 more
wiley +1 more source
Hybrid magnetic structures around spinning black holes connected to a surrounding accretion disk. [PDF]
Proc Int Astron Union, 2023 El Mellah I +3 more
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Hawking Radiation of Grumiller Black Hole [PDF]
, 2014 Seyedeh Fatemeh Mirekhtiary +1 more
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Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes
Advanced Materials, EarlyView.Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro +13 more
wiley +1 more source
Accretion around black holes: The geometry and spectra. [PDF]
iScience, 2022 Liu BF, Qiao E.
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Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons
Advanced Materials, EarlyView.Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner +9 more
wiley +1 more source