Results 121 to 130 of about 658,118 (329)

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Neutrino Helioseismology

, 1992
The observed deficit of $\rm ^8B$ solar neutrinos may call for an improved standard model of the sun or an expanded standard model of particle physics ({\it e.g.,} with neutrino masses and mixing).
De Rújula, A., Glashow, S. L.
core   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Solar Neutrinos: What We Have Learned

, 1993
The four operating solar neutrino experiments confirm the hypothesis that the energy source for solar luminosity is hydrogen fusion. However, the measured rate for each of the four solar neutrino experiments differs significantly (by factors of 2.0 to 3 ...
,. R. Davis, A. Acker, A. Cisneros, A.,I. Abazov, A.I. Abazov, B. Pontecorvo, C.M. Lim, E. Akhmedov, E. Schatzman, G. Aardsma, G. Ranucci, H. Chen, J Frieman, J. Schechter, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.P. Revol, K.S. Hirata, K.S. Hirata, L. Krauss, L. Wolfenstein, L. Wolfenstein, L.B. Okun, M. Takita, M.B. Voloshin, P. Anselmann, P. Anselmann, P.I. Krastev, R. Davis, R.E. Lanou, R.S. Raghavan, S. Pakvasa, S.M. Bilenky, S.M. Bilenky, S.P. Mikheyev, S.P. Mikheyev, S.P. Mikheyev, S.P. Mikheyev, T.K. Kuo, V. Gribov, X Shi, X.-G. He, Y. Suzuki, Z.G. Berezhiani, Z.G. Berezhiani   +50 more
core   +2 more sources

Standard solar model. II - g-modes

The Astrophysical Journal, 1992
The paper presents the g-mode oscillation for a set of modern solar models. Each solar model is based on a single modification or improvement to the physics of a reference solar model. Improvements were made to the nuclear reaction rates, the equation of state, the opacities, and the treatment of the atmosphere.
D. B. Guenther, P. Demarque, M. H. Pinsonneault, Y.-C. Kim   +3 more
openaire   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Estimate of solar radius from f-mode frequencies

, 1997
Frequency and rotational splittings of the solar f-modes are estimated from the GONG data. Contrary to earlier observations the frequencies of f-modes are found to be close to the theoretically computed values for a standard solar model. The f-mode being
Antia, H. M.
core  

Large mixing angles for neutrinos from infrared fixed points

, 2003
Radiative amplification of neutrino mixing angles may explain the large values required by solar and atmospheric neutrino oscillations. Implementation of such mechanism in the Standard Model and many of its extensions (including the Minimal ...
Casas, J. A., Espinosa, J. R., Navarro, I.   +2 more
core   +1 more source

The standard solar model - Composition, opacities, and seismology

The Astrophysical Journal, 1989
High-precision standard solar models are used to investigate systematically the implications of current uncertainties in the interior radiative opacities for both the derivation of the helium content Y and the modeling of p-mode oscillation frequencies of the sun.
D. B. Guenther, A. Jaffe, P. Demarque
openaire   +1 more source