Results 121 to 130 of about 54,450 (311)

Enhancing Cycle Life in Superoxide‐Based Na–O2 Batteries by Reducing Interface Reactivity

open access: yesAdvanced Energy Materials, EarlyView.
A new sodium–oxygen (Na–O2) battery is designed with highly active vanadium phosphide (VP) nanoparticles as a catalyst, an ether/ionic liquid‐based electrolyte, and an effective sodium bromide (NaBr) anode protection layer. This designed Na–O2 cell that produces NaO2 is able to reduce the interfacial reactivity between cell materials and the product to
Adel Azaribeni   +14 more
wiley   +1 more source

X‐ray microscopy and automatic detection of defects in through silicon vias in three‐dimensional integrated circuits

open access: yesEngineering Reports, Volume 4, Issue 12, December 2022., 2022
Through silicon vias are a key enabling technology for interconnection and realization of complex three‐dimensional integrated circuit components. A combined x‐ray microscopy and deep learning object detection workflow for automatic micrometer accurate defect location on liner‐TSVs was developed in this work by developing proper scan recipes and a ...
Benedikt Christopher Wolz   +5 more
wiley   +1 more source

Decoupling Membrane Electrode Assembly Materials Complexity from Fuel Cell Performance through Image‐Based Multiphase and Multiphysics Modelling

open access: yesAdvanced Energy Materials, EarlyView.
A high‐resolution image‐based multiphase and multi‐physics modelling framework is developed to decouple structural changes in the membrane electrode assemblies of high‐temperature proton exchange membrane fuel cells. These changes are then digitally combined to show how morphological defects such as membrane pores, catalyst cracks, and phase migration ...
Jianuo Chen   +13 more
wiley   +1 more source

Soft, environmentally degradable microfluidic devices for measurement of sweat rate and total sweat loss and for colorimetric analysis of sweat biomarkers

open access: yesEcoMat, Volume 5, Issue 1, January 2023., 2023
Soft, skin‐interfaced microfluidic systems exploit biodegradable thermoplastic copolyester elastomers for the microfluidic layers, cellulose films and pressure sensitive adhesives as sealing layers, and carefully selected chemical reagents as colorimetric assays for monitoring sweat loss, sweat rate, pH, and chloride concentration.
Shanliangzi Liu   +8 more
wiley   +1 more source

Concurrent Operando Neutron Imaging and Diffraction Analysis Revealing Spatial Lithiation Phase Evolution in an Ultra‐Thick Graphite Electrode

open access: yesAdvanced Energy Materials, EarlyView.
The lithiation phases in an ultra‐thick graphite electrode are mapped operando as a function of electrode depth through a new method concurrently combining neutron imaging and diffraction. The results reveal the coexistence of lithiation phases during cycling as well as the solid electrolyte interface (SEI) formation and capacity loss through non ...
Markus Strobl   +12 more
wiley   +1 more source

High quantum yield of In‐based halide perovskites for white light emission and flexible x‐ray scintillators

open access: yesEcoMat, Volume 5, Issue 2, February 2023., 2023
The Sb3+‐doped MA4InCl7 [MA+: CH3NH3+] shows a broadband yellow emission with a full width at half‐maximum of 180 nm and a high PLQY of 84%, which facilitates the applications of white light emission and flexible x‐ray imaging. Abstract In‐based halides always present low photoluminescence quantum yield (PLQY) because of poor absorption, limiting their
Dehai Liang   +7 more
wiley   +1 more source

Ultrahigh resolution radiation imaging system using an optical fiber structure scintillator plate

open access: yesScientific Reports, 2018
High resolution imaging of radiation is required for such radioisotope distribution measurements as alpha particle detection in nuclear facilities or high energy physics experiments.
Seiichi Yamamoto   +2 more
doaj   +1 more source

Heavy‐Atom‐Induced Narrow Emission in Chalcogen‐Coordinating Lanthanide Cerium(III) Complexes

open access: yesAggregate, EarlyView.
A novel heavy‐atom‐induced narrow emission is observed in luminescent Ce(III) complexes by adopting imidodiphosphinate ligand with different chalcogen‐coordinating sites such as O, S, Se, and Te. In the heaviest Te‐coordinating complex, the full width at half maxima is only 42 nm, which is the narrowest emission band of Ce(III).
Jiayin Zheng   +9 more
wiley   +1 more source

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