Results 51 to 60 of about 11,155 (263)

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 more
wiley   +1 more source

On the factors controlling occurrence of F-region coherent echoes [PDF]

, 2002
International audienceSeveral factors are known to control the HF echo occurrence rate, including electron density distribution in the ionosphere (affecting the propagation path of the radar wave), D-region radio wave absorption, and ionospheric ...
T. Ogawa, S. Nozawa, A. V. Koustov, D. Andre (7667897), Milan, S.E., D. W. Danskin, Nozawa, S., T. Ogawa (4008053), S. E. Milan (7594526), N. Nishitani, D. Andre, Milan, S. E., Lester, M., S. Nozawa (7672178), D. W. Danskin (7613489), N. Nishitani (7672181), Danskin, D. W., Ogawa, T., M. Lester, A. V. Koustov (7613492), M. Lester (7589660), Andre, D., S. E. Milan, Koustov, A.V., Koustov, A. V., Nishitani, N., Danskin, D.W.   +26 more
core   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Advanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears, Kerrianne Harrington, Jonathan C. Knight, William J. Wadsworth, James M. Stone, Tim A. Birks   +5 more
wiley   +1 more source

Fractions of interaction mechanisms of 1 MeV photons for (a) coherent scattering, (b) incoherent scattering and (c) photoelectric interaction. [PDF]

, 2018
Fractions of interaction mechanisms of 1 MeV photons for (a) coherent scattering, (b) incoherent scattering and (c) photoelectric interaction.
Mehrdad Shahmohammadi Beni (796228), K. N. Yu (1946557), D. Nikezic (796227), D. Krstic (3160179)   +3 more
core   +1 more source

Advanced Imaging Methods Using Coded Aperture Digital Holography

Engineering Proceedings, 2023
Optical imaging has been utilized in nature and technology for decades. Recently, new methods of optical imaging assisted by computational imaging techniques have been proposed and demonstrated.
Joseph Rosen
doaj   +1 more source

Extreme Polaritonic Interactions in a Room‐Temperature Designable Sub‐Nanocavity Quantum Electrodynamic Platform

Advanced Science, EarlyView.
 A nanoparticle‐cluster‐on‐mirror (NPcoM) serves as a functionally deterministic sub‐nanocavity that emulates picocavities, enabling extreme light–matter interactions and polaritonic phenomena. ABSTRACT Pushing nanoscale optical confinement to its ultimate limits defines the regime of nano‐cavity quantum electrodynamics (nano‐cQED), where light‐matter ...
Huatian Hu, Xin Shu, Zhiwei Hu, Di Zheng, Ruiqian Zhang, Ximin Cui, Wei Dai, Xiang Lan, Xiaobo Han, Wen Chen, Hongxing Xu   +10 more
wiley   +1 more source

Fractions of interaction mechanisms of 100 keV photons for (a) coherent scattering, (b) incoherent scattering and (c) photoelectric interaction. [PDF]

, 2018
Fractions of interaction mechanisms of 100 keV photons for (a) coherent scattering, (b) incoherent scattering and (c) photoelectric interaction.
Mehrdad Shahmohammadi Beni (796228), K. N. Yu (1946557), D. Nikezic (796227), D. Krstic (3160179)   +3 more
core   +1 more source

Exclusive J/Ψ,ρ,ϕ and γ production at HERA and LHC within dipole models

EPJ Web of Conferences, 2018
We describe exclusive J/ψ,ρ,Φ and γ production at HERA and calculate cross sections and transverse momentum distributions for the incoherent diffractive production of vector mesons J/ψ and γ on heavy nuclei.
Luszczak Agnieszka
doaj   +1 more source

A point-based scattering model for the incoherent component of the scattered field [PDF]

The Journal of the Acoustical Society of America, 2017
A numerical model for calculation of the incoherent component of the field scattered from random rough surfaces is described. This model is based on the point scattering approach, where the mean scatterer amplitudes are calculated from deterministic models.
Daniel C, Brown, Shawn F, Johnson, Derek R, Olson   +2 more
openaire   +2 more sources

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

Advanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave, Nicolas Bernier, Thomas Jalabert, Yoann Brûlé, Damien Térébénec, Pierre Meilleur, Hervé Roussel, Jean‐Baptiste Dory, Oussama J. Mouawad, Thibault Chommaux, Cristian Mocuta, Dominique Thiaudière, Laurent Vila, Françoise Hippert, Pierre Noé   +14 more
wiley   +1 more source