Results 81 to 90 of about 12,411 (357)
Advanced Science, EarlyView.This study constructs a dual‐scale Ag‐based catalyst on CeO2 nanorods via a facet‐guided strategy. This catalyst can induce a cascaded orbital hybridization effect, which synergistically optimizes oxygen vacancy stability, CO desorption kinetics, and charge transfer efficiency.
Youjia Wang +6 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.Zirconium, hafnium, and mixed zirconium/hafnium doped indium tin oxide thin films are accessible by atomic layer deposition. The amorphous functional films are about 8 nm thick and show a high interdiffusion of all elements. Their transistor characteristics can be modulated depending on the amount of Zr and Hf oxide phases incorporated in these thin ...
Marie Isabelle Büschges +5 more
wiley +1 more source
Low Cost Electric Propulsion Thruster for Deep Space Robotic Science Missions [PDF]
Electric Propulsion (EP) has found widespread acceptance by commercial satellite providers for on-orbit station keeping due to the total life cycle cost advantages these systems offer.
Manzella, David
core +1 more source
Advanced Energy Materials, EarlyView.This review highlights the use of atomic layer deposition (ALD) for fabricating thermoelectric thin films with atomic‐scale control. Four material classes—chalcogenides, doped oxides, ternary oxides, and multilayered structures—are compared in terms of growth dynamics, structure–property relationships, and thermoelectric performance. The precise tuning
Jorge Luis Vazquez‐Arce +5 more
wiley +1 more source
Growth of Rayleigh instability in a Hall thruster channel having dust in exit region
AIP Advances, 2019 In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.A physical framework is developed based on drift‐diffusion simulations to elucidate the operation of integrated perovskite/organic solar cells (I‐POSCs) through the lens of interfacial charge‐carrier dynamics. A stepwise analysis establishes key links between carrier transport/recombination phenomena and device performance metrics, offering valuable ...
Jingjing Tian +5 more
wiley +1 more source
Study on inversion method of wall erosion information of on-orbit Hall thruster based on low-frequency oscillation signals and neural networks. [PDF]
Heliyon, 2022 Han K +7 more
europepmc +1 more source
Throttling Impacts on Hall Thruster Performance, Erosion, and Qualification for NASA Science Missions [PDF]
With the SMART-1, Department of Defense, and commercial industry successes in Hall thruster technologies, NASA has started considering Hall thrusters for science missions. The recent Discovery proposals included a Hall thruster science mission and the In-
Dankanich, John W., DeHoyos, Amado
core +1 more source
Characterization of ISF-VAT performance in weak magnetic nozzle
, 2020 Vacuum arc thruster performance in a magnetic nozzle configuration is experimentally characterized. Measurements are performed on a miniature coaxial thruster with an anode inner diameter of $1.8$ mm. The magnetic field B is produced by a single air coil,
Chowdhury, Satyajit, Kronhaus, Igal
core +1 more source
Advanced Energy Materials, EarlyView.While perovskite solar cells have been widely studied, including their stability, perovskite indoor photovoltaics (IPVs) have only recently emerged. Nevertheless, more studies are appearing in the literature. The systematic stability study of IPVs is crucial, particularly given the inconsistencies in reported methodologies and results, which call for ...
Ivy Mawusi Asuo +7 more
wiley +1 more source