Results 231 to 240 of about 29,368 (305)

Microstructural evolution of V‐Ti‐B based high‐temperature alloys during surface conditioning by means of laser beam melting Entwicklung der Gefüge von V‐Ti‐B‐Hochtemperatur‐Legierungen während der Oberflächenmodifikation mittels selektivem Laserstrahlschmelzen

open access: yesMaterialwissenschaft und Werkstofftechnik, EarlyView.
This study explores laser beam melting (LBM) on V‐Ti‐B alloys for high‐temperature applications. By applying two laser power levels, researchers analyzed microstructural evolution via scanning electron microscopy and energy dispersive spectroscopy. Hardness tests revealed surface conditioning increases of 5 % ‐ 33 %.
M. Carrion Saldaña   +7 more
wiley   +1 more source

Efficient and Durable Semitransparent Perovskite Solar Cells for the Application in 4T Perovskite/c‐Si Tandem Devices

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
We present an optimized fabrication strategy incorporating a solution‐processed SnO2 buffer layer that prevents sputter‐induced damage during TCO deposition, enabling semitransparent perovskite solar cells with 21.87% efficiency, 27.15% in tandem, and exceptional long‐term stability under continuous illumination and outdoor conditions.
Satish Bykkam   +12 more
wiley   +1 more source

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

open access: yesSmall, 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   +3 more
wiley   +1 more source

Interphase and random nanoscale carbide precipitation in vanadium micro-alloyed steels studied using SANS. [PDF]

open access: yesJ Mater Sci
Khan ZZ   +6 more
europepmc   +1 more source

Plasma Enabled Synthesis of Dual Phase Alkali Metals (Li, Na, K) & Water Co‐Intercalated V2O5 3D TMO Clusters for High Performing Aqueous Zinc Ion Battery

open access: yesSmall, EarlyView.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention as a safe and cost‐effective to energy storage system. Cathode materials, which are critical to determining overall AZIB performance, remain a major hurdle to deployment.
Taeyong Lee   +15 more
wiley   +1 more source

Interfacial Nano‐Pitting and In Situ Sulfate‐Directed Growth of Na2.85V2(PO4)2.85(SO4)0.15 Nanodots on MWCNT for Ultrafast Sodium‐Ion Storage

open access: yesSmall, EarlyView.
Ultracentrifugation‐assisted phosphate–sulfate treatment induces self‐limiting nano‐pitting on carbon nanotube surfaces, creating confined sites for in situ growth of Na2.85V2(PO4)2.85(SO4)0.15 nanodots. This embedded nanodot–carbon interface ensures strong electronic coupling and short ion pathways, enabling capacitor‐like sodium storage with ...
Naohisa Okita   +10 more
wiley   +1 more source

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