Results 81 to 90 of about 41,361 (307)

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Silicon-on-insulator photonic crystal miniature devices with slow light enhanced third-order nonlinearities [PDF]

open access: yes, 2012
The effects of the slow-down factor on third-order nonlinear effects in silicon-on-insulator photonic crystal channel waveguides were investigated. In the slow light regime, with a group index equal to 99, these nonlinear effects are enhanced but the ...
De La Rue, R.M., Rawal, S., Sinha, R.K.
core   +1 more source

Label-Free Biosensing With a Slot-Waveguide-Based Ring Resonator in Silicon on Insulator

open access: yesIEEE Photonics Journal, 2009
We present a slot-waveguide-based ring resonator in silicon on insulator (SOI) with a footprint of only 13 mum times 10 mum, fabricated with optical lithography.
Tom Claes   +5 more
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Silicon optomechanics [PDF]

open access: yes, 2010
Optomechanics might provide the key to realize various signal processing functions on a chip. In this proceeding we focus on silicon Nano-Optomechanical Systems (NOMS) and provide an overview of several types of optomechanical ...
Baets, Roel   +3 more
core   +2 more sources

Voltage oscillations in SOI transistors as generators

open access: yesТехнологія та конструювання в електронній апаратурі, 2005
Voltage and current oscillations in field-effect transistors fabricated using silicon-on-insulator (SOI) technology have been investigated. It has been shown that by changing the transistor’s supply conditions, the oscillation frequency can be varied ...
G. K. Ninidze   +3 more
doaj  

Peculiarities of electronic structure of silicon-on-insulator structures and their interaction with synchrotron radiation

open access: yesModern Electronic Materials, 2015
SOI (silicon-on-insulator) structures with strained and unstrained silicon layers were studied by ultrasoft X-ray emission spectroscopy and X-ray absorption near edge structure spectroscopy with the use of synchrotron radiation techniques.
Vladimir A. Terekhov   +5 more
doaj   +1 more source

Through Diamond Robust Surface Enhanced Raman Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle   +4 more
wiley   +1 more source

Cricket Inspired High Efficiency MEMS Speakers

open access: yesProceedings, 2017
We report on the realization of a biomimetic MEMS speaker inspired by field crickets. This speaker is at least five times thinner and four times more efficient than the current dynamic speakers used in portable electronics.
Meera Garud   +4 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

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