Results 121 to 130 of about 17,672 (303)

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

Advanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +1 more source

Two dimensional hybrid simulations of small scale obstacles in the solar wind [PDF]

The structure and dynamics of the solar wind interaction with two small scale obstacles (of the order of a pickup ion gyroradius) is examined. These are a comet, comparable to Grigg-Skjellerup, and a weakly ionospheric planet.
Hopcroft, Matthew William
core  

Correlated Interball/ground-based observations of isolated substorm: The pseudobreakup phase [PDF]

, 2001
International audienceWe study the isolated substorm that occurred after a long quiet period, which showed all of the substorm signatures except for the first half hour of the expansion phase, which could be characterized as a pseudobreakup sequence ...
I. A. Kornilov, Sergeev, V.A., R. D. Belian, N. L. Borodkova, Bösinger, T., Sergeev, V. A., Sauvaud, J.-A., Thomsen, M.F., Sergienko, T. I., Belian, R.D., Borodkova, N. L., V. N. Lutsenko, Sergienko, T.I., V. A. Sergeev, A. A. Skalsky, J.-A. Sauvaud, Belian, R. D., Lutsenko, V.N., Borodkova, N.L., Kornilov, I. A., Skalsky, A.A., Yahnin, A. G., Lutsenko, V. N., Thomsen, M. F., Kornilov, I.A., T. I. Sergienko, M. F. Thomsen, Yahnin, A., A. G. Yahnin, Skalsky, A. A., T. Bösinger   +30 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

The 3He-rich SEP on Event 2024 April 1 at 27 Solar Radii—Indications of Acceleration by Waves and Implications of Coronal Source Location

The Astrophysical Journal
Parker Solar Probe (PSP) observations of a small dispersive event on 2024 April 1 reveal highly enriched ^3 He abundance in the suprathermal energy range (40–250 keV nucleon ^−1 ). Time dispersion observed in this impulsive solar energetic particle (SEP)
D. G. Mitchell, D. Lario, N. E. Raouafi, G. M. Mason, A. Kouloumvakos, H. Collier, E. C. Roelof, G. Berland, D. J. McComas, C. M. S. Cohen, M. E. Hill, R. L. McNutt Jr, P. S. Mostafavi, J. C. Kasper, S. D. Bale, M. Pulupa, P. L. Whittlesey   +16 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Probing turbulence in solar flares from SDO/AIA emission lines

Frontiers in Astronomy and Space Sciences
Multiple pieces of evidence have revealed the important role of turbulence in physical processes in solar eruptions, from particle acceleration to the suppression of conductive cooling.
Xiaoyan Xie, Gang Li, Katharine K. Reeves, Tingyu Gou   +3 more
doaj   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Solar influences in the heliosphere: understanding coronal mass ejections and their associated magnetic clouds [PDF]

, 2011
Coronal mass ejections (CMEs) are large-scale explosions on the Sun that expel plasma and magnetic field into the heliosphere. The interplanetary counterparts of CMEs, termed interplanetary CMEs (ICMEs), are often directly observed by spacecraft ...
Steed, K.
core  

Exploring SEP Transport in Widespread Events with Different Heliospheric Current Sheet Models

The Astrophysical Journal
Understanding solar energetic particle transport in wide-longitude events remains a significant question in heliophysics. By utilizing the increasing number of available observers at various heliographic distances and longitudes, such as Parker Solar ...
C. O. G. Waterfall, G. A. de Nolfo, A. Hutchinson, D. da Silva, S. Wallace, S. Dalla, J. G. Mitchell   +6 more
doaj   +1 more source