Results 41 to 50 of about 459 (135)

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

open access: yesCarbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li   +14 more
wiley   +1 more source

Synthesis and Electrochemical Properties of Na2Fe0.8Mg0.15Ni0.05PO4F/C Composite as Cathode Materials for Sodium-ion Batteries

open access: yesElectrochemistry, 2022
Due to the abundance and low cost of sodium, sodium-ion batteries have received renewed attention in large-scale applications. At present, the primary task is to explore a new generation of cathode materials with excellent performance.
Feixiang GUO   +7 more
doaj   +1 more source

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang   +9 more
wiley   +1 more source

Integral optoelectronic switch based on DMOS-transistors [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
The characteristics of optoelectronic couples photodiodes-DMOS-transistor are studied in the paper. There was developed a mathematical model of volt-ampere characteristic of the given optoelectronic couple which allows to determine interrelation of its ...
Politanskyy L. F., Lesinskyy V. V.
doaj  

Analysis of the Effects of Arc Volt–Ampere Characteristics on Different Loads and Detection Methods of Series Arc Faults

open access: yesEnergies, 2019
Owing to the shortcomings of existing series arc fault detection methods, based on a summary of arc volt⁻ampere characteristics, the change rule of the line current and the relationship between the voltage and current are deeply analyzed and ...
Qiwei Lu   +4 more
doaj   +1 more source

Revisiting Open‐Circuit Voltage in Heterojunction‐Scarce Organic Solar Cells

open access: yesElectron, EarlyView.
This work establishes an analytic framework based on the interplay between the composition‐driven density of states and geminate recombination for understanding the open‐circuit voltage of bulk heterojunction‐reduced organic solar cells. ABSTRACT Organic solar cells (OSCs) have reached power conversion efficiencies (PCEs) above 21%, yet their market ...
Zeyu Wang, Chao Zhao, Wei Ma, Han Yan
wiley   +1 more source

Study on the time-varying characteristics of AC local arc over the contaminated insulation surface

open access: yesAIP Advances, 2021
From laboratory experiments it was shown that the flashover voltage of the wet contaminated insulator was significantly influenced by the parameters of the local arc.
H. Yang   +4 more
doaj   +1 more source

Air Pollution Quinones Impair Intestinal Barrier Integrity and Endoplasmic Reticulum in Differentiated Caco‐2 Cells

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Particulate matter (PM) is a major global health threat, linked to millions of deaths annually. Beyond inhalation, PM components reach the gastrointestinal tract through the mucociliary escalator or contaminated food and water. Among PM's organic fraction, redox‐active quinones such as 1,2‐naphthoquinone (NQ) and 9,10‐phenanthrenequinone (PQ ...
Franco Cervellati   +6 more
wiley   +1 more source

Nanomaterials‐Decorated Biomass‐Derived Carbon for Overall Water Splitting: Interfacial Engineering, Mechanistic Insights, and Device Translation

open access: yesThe Chemical Record, EarlyView.
Biomass‐derived carbon provides a sustainable, porous, and conductive scaffold that stabilizes nanomaterials for bifunctional hydrogen evolution reaction/oxygen evolution reaction catalysis. This review summarizes design strategies (defects, heteroatom doping, heterostructures, single atoms), mechanistic/density functional theory insights, degradation ...
Paricha Jebin   +8 more
wiley   +1 more source

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov   +4 more
wiley   +1 more source

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