Results 41 to 50 of about 42,370 (298)

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Non‐volatile Sliding Ferroelectric Memory Effect in Ultrathin γ‐InSe

open access: yesAdvanced Electronic Materials
Ferroelectrics exhibit field‐tunable non‐volatile polarization, making them essential for modern electronic devices, including memories and sensors. Conventional ferroelectric transistors typically suffer from limited memory windows and poor fatigue ...
Yue Li   +7 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam   +10 more
wiley   +1 more source

Nonequilibrium pulsed heating freezes sintering of supported metal nanocatalysts

open access: yesNature Communications
Supported metal nanoparticles always experience thermal-induced sintering that severely depresses their catalytic performance and durability. Recently, ultrafast heating technology has been widely adopted in synthesizing diverse metal nanoparticles or ...
Jiawei Huang   +9 more
doaj   +1 more source

Research development of 2D materials based photodetectors towards mid‐infrared regime

open access: yesNano Select, 2021
High performance mid‐infrared photodetectors play an irreplaceable role in optical communication, security monitoring, biological, and medical imaging and so on. Two‐dimensional (2D) materials have demonstrated great potential for infrared photodetection
Junru An   +7 more
doaj   +1 more source

Dirac‐Source Linear X‐Ray Detection Diode

open access: yesAdvanced Functional Materials, EarlyView.
Monolayer graphene imparts near linear current‐voltage behavior to a perovskite X‐ray detection diode, contrasting with conventional diode‐like responses. Exploiting graphene's Dirac dispersion and a Schottky‐like back‐to‐back junction, the device achieves six‐orders‐of‐magnitude dark current suppression while retaining linearity over 200 V, enabling ...
Babar Shabbir   +8 more
wiley   +1 more source

Recent Progress on Perovskite Photodetectors for Narrowband Detection

open access: yesAdvanced Photonics Research, 2022
Narrowband detection is of urgent demand in many fields, such as machine vision, biofluorescence imaging, artificial intelligence, flame, or gas molecule monitoring.
Xingyu Lu   +6 more
doaj   +1 more source

Silicon nanowire network metal-semiconductor-metal photodetectors [PDF]

open access: yes, 2013
We report on the fabrication and characterization of solution-processed, highly flexible, silicon nanowire network based metal-semiconductor-metal photodetectors.
Mete Gunoven   +19 more
core   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

open access: yesAdvanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski   +3 more
wiley   +1 more source

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