Results 141 to 150 of about 62,374 (306)

Absorption Voltages and Insulation Resistance in Ceramic Capacitors with Cracks [PDF]

Time dependence of absorption voltages (Vabs) in different types of low-voltage X5R and X7R ceramic capacitors was monitored for a maximum duration of hundred hours after polarization.
Teverovsky, Alexander
core   +1 more source

Critical Role of Polymer Gate Dielectrics on the Charge Carrier Transport in Perovskite Field‐Effect Transistors

Advanced Functional Materials, EarlyView.
Charge transport in 2D tin perovskite FETs is shown to be governed by dielectric interface behavior. Polar polymer dielectrics induce dipolar disorder that localizes carriers, whereas nonpolar polymers suppress trapping and enable superior charge transport, ensuring stable and reliable transistor operation. ABSTRACT Understanding the role of interfaces
Chongyao Li, Zhitian Ling, Pawel Czulkin, Paul W. M. Blom, Wojciech Pisula, Tomasz Marszalek   +5 more
wiley   +1 more source

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

Advanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan, Nuno Estrócio, Inês Silva, Raluca Negrea, Marian C. Istrate, Koppole C. Sekhar, Luís Marques, Judith L. MacManus‐Driscoll, Ignasi Fina, Florencio Sánchez, José P. B. Silva   +10 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Thermal diagnostics of oil-filled equipment under operating voltage

Physical Sciences and Technology, 2019
The article justifies the need for technical diagnostics of high-voltage insulation of electrical equipment under operating voltage. The thermal imaging monitoring method of equipment condition is considered in the document. It is shown that by means of
B. R. Kangozhin, S. S. Dautov, M. S. Zharmagambetova, M. A. Kosilov   +3 more
doaj  

Kualiti pengalaman pembelajaran pelajar-pelajar kejuruteraan di KUiTTHO dari aspek kognitif dan afektif [PDF]

, 2004
Pembelajaran kognitif dan afektif merupakan pembelajaran yang perlu ditekankan dalam konteks pengajaran dan pembelajaran dalam pendidikan tinggi kejuruteraan.
Tuan Mat, Tuan Rozilaazawani
core  

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

Advanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song, Md Ashiqur Rahman, Qianlu Zheng, Nathaniel Hawthorne, James D. Batteas, Rui Qiao, Rosa M. Espinosa‐Marzal   +6 more
wiley   +1 more source

Numerical Analysis of Electric Field in Oil-Immersed Current Transformer with Metallic Particles Inside Main Insulation

Energies
During the manufacturing process of oil-immersed current transformers, metallic particles may become embedded in the insulation wrapping, and the resulting electric field distortion is one of the primary causes of failure.
Wei Lou, Bo Lu, Youxiang Pan, Zhou Han, Lujia Wang   +4 more
doaj   +1 more source

Fast Track to the Overdoped Regime of Superconducting YBa2Cu3O7‐δ Thin Films via Electrochemical Oxidation

Advanced Functional Materials, EarlyView.
Overdoping high temperature superconductors, such as YBa2Cu3O7‐δ (YBCO), is expected to maxime the critical current density by optimising the condensation energy for a given defect landscape, providing new thrust for the development of fusion enabling coated conductors. Here, precise oxygen control is achieved via an electrochemical method allowing for
Alexander Stangl, Aiswarya Kethamkuzhi, Hervé Roussel, Cornelia Pop, Xavier Obradors, Teresa Puig, Mónica Burriel, Arnaud Badel   +7 more
wiley   +1 more source