Results 111 to 120 of about 50,826 (301)

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

open access: yesAdvanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah   +11 more
wiley   +1 more source

Optical Analog to Electromagnetically Induced Transparency in Cascaded Ring-Resonator Systems

open access: yesSensors, 2016
The analogue of electromagnetically induced transparency in optical methods has shown great potential in slow light and sensing applications. Here, we experimentally demonstrated a coupled resonator induced transparency system with three cascaded ring ...
Yonghua Wang   +3 more
doaj   +1 more source

Achieving Energy Efficiency in Analogue and Mixed Signal Integrated Circuit Design

open access: yes, 2012
Wireless communications are one of the major successes of the engineering over the past two decades. The progress made in this area has not only produced a huge technological growth, but also a great impact at social and economical level. In fact, the possibility of being connected anywhere at any time has radically changed people habits. The evolution
López Morillo, Enrique   +4 more
openaire   +5 more sources

Ionic‐Electronic Hydrogel‐Liquid Metal Composite Bilayer with Tissue‐Adaptive and Adhesive Properties for Closed‐Loop Neuroprosthetic System

open access: yesAdvanced Functional Materials, EarlyView.
A hydrogel–liquid metal composite peripheral nerve interface (HLB‐PNI) combines electrically durable electrodes and tissue‐adhesive hydrogel for tissue‐adaptive implantation. In nerve‐injured rats, it enables the diagnosis of sensory‐motor connectivity via stimulation and neural signal recording.
Yewon Kim   +5 more
wiley   +1 more source

Real‐Time, Label‐Free Monitoring of Cell Behavior on a Bioelectronic Scaffold

open access: yesAdvanced Functional Materials, EarlyView.
A bioelectronic nanofibrous scaffold is introduced that supports cell growth while enabling real‐time, label‐free monitoring of cellular behavior through impedance measurements. The system correlates electrical signals with cell viability and surface coverage, offering an integrated platform for studying dynamic biological processes and advancing next ...
Dana Cohen‐Gerassi   +10 more
wiley   +1 more source

Design of multistage configurable CIC filter

open access: yesDianzi Jishu Yingyong
In view of the development of Very-Large-Scale Integration circuits and the wide application of Sigma Delta analogue-to-digital converters, this paper proposes a multi-stage configurable cascade integrated comb filter structure for 24-bit Sigma Delta ...
Li Shengmei, Zhao Hai, Ni Yi
doaj   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy   +6 more
wiley   +1 more source

Wireless LED controller IC for smart contact lens system

open access: yesElectronics Letters
This letter presents a wirelessly powered LED driving circuit for a smart contact lens system. Since photobiomodulation has been investigated for ocular disease treatment by irradiating light with a specific wavelength, a smart contact lens equipped with
Cheonhoo Jeon, Jahyun Koo
doaj   +1 more source

Carbon Nanotube Based Delay Model For High Speed Energy Efficient on Chip Data Transmission Using: Current Mode Technique

open access: yes, 2014
Speed is a major concern for high density VLSI networks. In this paper the closed form delay model for current mode signalling in VLSI interconnects has been proposed with resistive load termination. RLC interconnect line is modelled using characteristic
Chandel, Rajeevan   +2 more
core   +1 more source

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