Results 111 to 120 of about 395,358 (288)

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

A High Gain and Low-Offset Current-Mode Instrumentation Amplifier Using Differential Difference Current Conveyors

open access: yes, 2015
IEEE Conference on Electronics, Circuits, and Systems (ICECS) -- DEC 06-09, 2015 -- Cairo, EGYPTIn this work, a current-mode high CMRR and low offset instrumentation amplifier is proposed. In the structure, only differential difference current conveyors (
Arslan, Emre, Cini, Ugur
core   +2 more sources

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

Enhanced Linearity in Intracranial Pressure Monitoring System Through Sample Isolation Bridge ROIC

open access: yesApplied Sciences
This study presents a sample isolation bridge readout integrated circuit (ROIC) specifically designed for intracranial pressure (ICP) monitoring systems. The ROIC consists of an instrumentation amplifier (IA) and a successive approximation register (SAR)
Shaopeng Yao   +4 more
doaj   +1 more source

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies   +2 more
wiley   +1 more source

A Low-Cost, Wearable Band for Recording sEMG Signals of Hand Movements

open access: yesIEEE Access
Surface electromyography signals are widely used for monitoring neuromuscular activity in wearable health systems, rehabilitation, and human-machine interfaces. However, achieving reliable signal acquisition under strict power and portability constraints
Pooja Maurya   +3 more
doaj   +1 more source

A Novel Low Noise High Gain CMOS Instrumentation Amplifier for Biomedical Applications [PDF]

open access: yes, 2013
This work describes a novel technique of designing a low noise high gain CMOS instrumentation amplifier for biomedical applications. A three op-amp instrumentation amplifier have been designed by employing two simple op-amps at the two inputs and a ...
Goel, Akshay, Singh, Gurmohan
core  

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

open access: yesAdvanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek   +12 more
wiley   +1 more source

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