Results 51 to 60 of about 4,822,743 (296)

The band alignment of nonpolar m-plane ZnO1−xSx/Mg0.4Zn0.6O heterojunctions

open access: yesAIP Advances, 2020
Heterostructures such as heterojunctions, quantum wells, and superlattices are core components of advanced optoelectronic devices. Herein, we attempted the first investigations on the band alignment of nonpolar m-plane oriented ZnO1−xSx/Mg0.4Zn0.6O ...
Lei Li   +7 more
doaj   +1 more source

High‐Energy‐Density and High‐Rate Membraneless Ni−Fe Battery Enabled by a 1‐Butyl‐3‐Methylimidazolium Bromide‐Based Gel Electrolyte

open access: yesChemElectroChem, 2022
The aqueous Ni−Fe batteries offer great opportunities for energy storage and conversion devices and systems owing to their ultralong lifetime, high safety and reliability and eco‐friendly characteristics.
Dr. Yanfei Zeng   +4 more
doaj   +1 more source

Advanced Piezoelectric Materials, Devices, and Systems for Orthopedic Medicine

open access: yesAdvancement of science
Harnessing the robust electromechanical couplings, piezoelectric materials not only enable efficient bio‐energy harvesting, physiological sensing and actuating but also open enormous opportunities for therapeutic treatments through surface polarization ...
Jingkai Zhang   +5 more
semanticscholar   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Enhanced Photocatalytic Hydrogen Evolution by Loading Cd0.5Zn0.5S QDs onto Ni2P Porous Nanosheets

open access: yesNanoscale Research Letters, 2018
Ni2P has been decorated on CdS nanowires or nanorods for efficient photocatalytic H2 production, whereas the specific surface area remains limited because of the large size.
Lingfeng Xiao   +7 more
doaj   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

Additively‐manufactured piezoelectric devices [PDF]

open access: yesphysica status solidi (a), 2015
A low‐cost micro‐stereolithography technique with the ability to additively manufacture dense piezoelectric ceramic components is reported. This technique enables the layer‐wise production of functional devices with a theoretical in‐plane resolution of ∼20 μm and an out‐of‐plane resolution of <1 μm without suffering a significant reduction in the ...
Woodward, David I.   +4 more
openaire   +2 more sources

Recent Advances in Organic Piezoelectric Biomaterials for Energy and Biomedical Applications

open access: yesNanomaterials, 2020
The past decade has witnessed significant advances in medically implantable and wearable devices technologies as a promising personal healthcare platform.
Dong-Myeong Shin   +2 more
doaj   +1 more source

Electromechanical Modeling and Simulation of MEMS-Based Piezoelectric Vibration Energy Harvesting Device Using PZT-5H Material

open access: yesTạp chí Khoa học và Công nghệ, 2023
In this study, we describe the operation of piezoelectric energy converters and electromechanical modeling of piezoelectric energy harvesting (PEH) devices based on microelectromechanical systems (MEMS) for low-power sensors.
Tuan Ngoc Dao   +7 more
doaj   +1 more source

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

open access: yesAdvanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang   +18 more
wiley   +1 more source

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