Results 161 to 170 of about 1,104,915 (315)

Retrieval and molecule sensitivity studies for the global ozone monitoring experiment and the scanning imaging absorption spectrometer for atmospheric chartography [PDF]

The Global Ozone Monitoring Experiment (GOME) and the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) are diode based spectrometers that will make atmospheric constituent and aerosol measurements from European satellite ...
Burrows, John P., Chance, Kelly V., Schneider, Wolfgang   +2 more
core   +1 more source

Defect Passivation via Plasma Modification of Lead Halide Perovskite Thin Films

Progress in Photovoltaics: Research and Applications, EarlyView.
We demonstrate that exposure of perovskite thin films to diffuse coplanar surface barrier discharge nitrogen plasma leads to an increase in photoluminescence, attributed to reduced defect densities. This results in implied open‐circuit voltage improvement of up to 80 mV and finalized solar cell open‐circuit gains up to 60 mV.
Ales Vlk, Robert Hlavac, Lucie Landova, Mykhailo Khytko, Swarnendu Banerjee, Julius Vida, Jiří Fujera, Mostafa Othman, Aïcha Hessler‐Wyser, Christophe Ballif, Christian Wolff, Tomas Homola, Martin Ledinsky   +12 more
wiley   +1 more source

Enhancing the Chemical Reactivity of Graphene through Substrate Engineering

Small, EarlyView.
This review highlights methods to enhance the reactivity of graphene through substrate engineering, focusing on strain and charge doping. Strains induced by nanoparticles, metal crystal orientations, or stretchable polymers increase the reactivity of graphene.
Jia Tu, Mingdi Yan
wiley   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

Small, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal, Alexis Franquet, Hans Hofsäss, Tapobrata Som   +3 more
wiley   +1 more source

Temporal and spatial distribution of stratospheric trace gases over Antarctica in August and September, 1987 [PDF]

There have been a large number of suggestions made concerning the origin of the Antarctic 'ozone hole' since its discovery; these changes include stratospheric chemistry, or changes in the solar input, or combinations of these effects.
Coffey, M. T., Mankin, William G.
core   +1 more source

Influence of Temperature on the Reliability of Graphene‐Based Ozone Sensors

Small, EarlyView.
The reliability and stability of inkjet‐printed graphene flake sensors are evaluated. Stress assessments take place in ozone‐rich environments and at elevated temperatures, with the observation of a change in resistance. Surface‐sensitive techniques serve to investigate the failure and degradation mechanisms of printed graphene.
Archa Jain, Kathrin Ganzhorn, Aleksandr Baklanov, Tim Schaffus, Werner Breuer, Jasper Ruhkopf, Janio Venturini, Sebastian Troll, Annalisa Cappellani, Max C. Lemme   +9 more
wiley   +1 more source

Tetrazine Functionalized Graphene Enables Capture of Ultra‐Low Concentrations of Biomacromolecules

Small, EarlyView.
A novel method for covalent modification of monolayer graphene utilizing tetrazine containing diazonium salt is demonstrated. The modified graphene bearing tetrazine moieties undergoes inverse electron demand Diels‐Alder reactions with trans‐cyclooctene‐linked molecules, enabling bioorthogonal attachment of nanobodies that selectively capture EGFP ...
Ravindra K. Gupta, Hanbin Jeong, April Goehring, Eric Gouaux, Maggie He   +4 more
wiley   +1 more source

Large Unsaturated Magnetoresistance in Gated MoS2 Flakes

Small, EarlyView.
Magnetotransport investigation of layered MoS2 crystals in field‐effect devices reveals strong dependence on thickness and carrier density. Monolayer MoS2 exhibits the highest magnetoresistance of 680%. A combination of density functional theory and Boltzmann transport equation simulations shows that band transport is not causing the magnetic behavior,
Anoir Hamdi, Dominik Dettmann, Andrés Rafael Botello‐Méndez, Atiye Pezeshki, Lilian Skokan, Andreas Ruediger, Gianluca Fiori, Zeila Zanolli, Emanuele Orgiu   +8 more
wiley   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Twin‐compartment solid–liquid cells for neutron reflectometry

Journal of Applied Crystallography, EarlyView.
We introduce a twin‐compartment solid–liquid cell for neutron reflectometry that divides a single substrate into two independent measurement areas, doubling sample capacity and enabling direct side‐by‐side comparisons. This sample environment also reduces alignment and sample preparation time and has been successfully tested on both vertical and ...
Nicoló Paracini, Hannah Burrall, Thomas Saerbeck, Philipp Gutfreund, Giovanna Fragneto, Luke A. Clifton, Thomas Arnold, Marité Cárdenas   +7 more
wiley   +1 more source