Results 41 to 50 of about 7,750 (265)

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

Searching for Solar-like Oscillations Using TESS 2 minute Cadence in the Southern Ecliptic Hemisphere

The Astrophysical Journal Supplement Series
The TESS space mission has generated an extensive collection of light curves, providing a valuable opportunity to search for solar-like oscillations.
Yezheng Feng, Tao Wu, Hui-Fang Xue, Feiyang Li, Jia-Shu Niu   +4 more
doaj   +1 more source

The 11-year solar cycle, the 27-day Sun's rotation and the area of the stratospheric Aleutian high

Meteorologische Zeitschrift, 2001
The effect of the 11-year solar cycle on the 30-hPa geopotential height and temperature fields in the area of the Aleutian high caused by solar activity oscillations resulting from the Sun's rotation (27.2 d) is investigated, applying methods of ...
Boris Soukharev, Karin Labitzke
doaj   +1 more source

Solar-Like Oscillations in a Massive Star [PDF]

Science, 2009
Star Gazing Seismology of stars provides a unique insight into physical mechanisms taking place in their interior. Like the Sun, some stars have low-amplitude pulsations that are excited by turbulent convection in their outer layers. Belkacem et al. (p.
Belkacem, Kevin, Samadi, Réza, Goupil, Marie-Jo, Lefèvre, Laure, Baudin, Frédéric, Deheuvels, Sébastien, Dupret, Marc-Antoine, Appourchaux, T., Scuflaire, Richard, Auvergne, M., Catala, C., Michel, E., Miglio, Andrea, Montalban Iglesias, Josefa, Thoul, Anne, Talon, S. L. S., Baglin, A., Noels-Grötsch, Arlette   +17 more
openaire   +5 more sources

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-forced diurnal regulation of cave drip rates via phreatophyte evapotranspiration [PDF]

Hydrology and Earth System Sciences, 2016
We present results of a detailed study of drip rate variations at 12 drip discharge sites in Glory Hole Cave, New South Wales, Australia. Our novel time series analysis, using the wavelet synchrosqueezed transform, reveals pronounced oscillations at ...
K. Coleborn, K. Coleborn, G. C. Rau, G. C. Rau, M. O. Cuthbert, A. Baker, A. Baker, O. Navarre   +7 more
doaj   +1 more source

A Neptunian mirror for solar oscillations [PDF]

Science, 2017
Asteroseismology![Figure][1] The Kepler satellite PHOTO: NASA AMES/JPL-CALTECH/T PYLE The Sun's brightness varies by a tiny amount because of seismic oscillations. The Kepler satellite has detected the same process on other Sun-like stars, which can be used to determine their mass ...
openaire   +2 more sources

Quasivacuum solar neutrino oscillations [PDF]

Physical Review D, 2000
We discuss in detail solar neutrino oscillations with δm^2/E in the range [10^-10,10^-7] eV^2/MeV. In this range, which interpolates smoothly between the so-called ``just-so'' and ``Mikheyev-Smirnov-Wolfenstein'' oscillation regimes, neutrino flavor transitions are increasingly affected by matter effects as δm^2/E increases. As a consequence, the usual
G. L. FOGLI, E. LISI, MONTANINO, Daniele, A. PALAZZO   +3 more
openaire   +3 more sources

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Assessment of DKIST/VTF capabilities for the detection of local acoustic source wavefronts

Frontiers in Astronomy and Space Sciences
IntroductionRecent studies have demonstrated that temporal filtering can successfully identify local acoustic source wavefronts in radiative magnetohydrodynamic simulations of the solar photosphere.
Corinne Morrell, Corinne Morrell, Mark P. Rast, Mark P. Rast, Shah Mohammad Bahauddin, Shah Mohammad Bahauddin, Ivan Milić   +6 more
doaj   +1 more source