Results 191 to 200 of about 368,263 (301)
Study on the multi-wavelength variation of 3C 454.3. [PDF]
Sci RepChen X +9 more
europepmc +1 more source
Correlation of Band Bending and Ionic Losses in 1.68 eV Wide Band Gap Perovskite Solar Cells
Advanced Energy Materials, EarlyView.Piperazinium salt treatments with different anions (chloride, iodide, tosylate, and bistriflimide) influence the energetics, carrier dynamics and long‐term stability of 1.68 eV perovskite solar cells. Chloride treatments achieve the highest efficiency (21.5%) but suffer from fast degradation due to ionic losses.
Florian Scheler +28 more
wiley +1 more source
Elucidating the Role of Electric Fields in Fe Oxidation via an Environmental Atom Probe
Angewandte Chemie, EarlyView.Field‐Assisted Fe Oxidation imaged by Environmental Atom Probe. The oxidation of iron (Fe) at the tip of a sharp needle under high electrostatic fields has been visualized using an Environmental Atom Probe (EAP) and corroborated through Density Functional Theory (DFT) calculations and a mean‐field model applied to a multi‐faceted catalytic grain ...
Sten V. Lambeets +10 more
wiley +2 more sources
Imaging of electric-field-induced domain structure in DyMnO 3 nanocrystals. [PDF]
Discov NanoNajeeb MA +6 more
europepmc +1 more source
Advanced Energy Materials, EarlyView.Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang +12 more
wiley +1 more source
The Chiral Induced Spin Selectivity Effect What It Is, What It Is Not, And Why It Matters
Israel Journal of Chemistry, Volume 62, Issue 11-12, December 2022., 2022 Abstract The chiral induced spin selectivity effect is an excited states phenomenon, which can be probed using photo‐spectroscopy as well as transport measurements. On the one hand such measurements represent averaged quantities, on the other hand nearly all theoretical descriptions, with only a few exceptions, have been concerned with energy dependent
J. Fransson
wiley +1 more source
A highly magnetized long-period radio transient exhibiting unusual emission features. [PDF]
Sci AdvMen Y +4 more
europepmc +1 more source
Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells
Advanced Energy Materials, EarlyView.Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang +6 more
wiley +1 more source
Squeeze and multi‐context attention for polyp segmentation
International Journal of Imaging Systems and Technology, Volume 33, Issue 1, Page 123-142, January 2023., 2023 Abstract Artificial Intelligence‐based Computer Aided Diagnostics (AI‐CADx) have been proposed to help physicians in reducing misdetection of polyps in colonoscopy examination. The heterogeneity of a polyp's appearance makes detection challenging for physicians and AI‐CADx.
Debayan Bhattacharya +3 more
wiley +1 more source
Bibliometrics effects of a new paper level classification. [PDF]
Front Res Metr AnalPeña-Rocha M +3 more
europepmc +1 more source