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Oxide and semiconductor combination builds new device potential

12-Jan-2018

Insulating oxides are oxygen containing compounds that do not conduct electricity, but can sometimes form conductive interfaces when they're layered together precisely. The conducting electrons at the interface form a two-dimensional electron gas (2DEG) which boasts exotic quantum properties that ...

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Silver nanoparticles take spectroscopy to new dimension

A new way of organizing nanostructures has boosted Raman signals by a hundred thousand times to better identify and characterize different molecules

04-Jan-2018

As medicine and pharmacology investigate nanoscale processes, it has become increasingly important to identify and characterize different molecules. Raman spectroscopy, a technique that leverages the scattering of laser light to identify molecules, has a limited capacity to detect molecules in ...

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Using the dark side of excitons for quantum computing

21-Dec-2017

To build tomorrow's quantum computers, some researchers are turning to dark excitons, which are bound pairs of an electron and the absence of an electron called a hole. As a promising quantum bit, or qubit, it can store information in its spin state, analogous to how a regular, classical bit ...

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Hybrid electrolyte enhances supercapacitance in vertical graphene nanosheets

08-Dec-2017

Supercapacitors can store more energy than and are preferable to batteries because they are able to charge faster, mainly due to the vertical graphene nanosheets (VGNs) that are larger and positioned closer together. VGNs are 3-D networks of carbon nanomaterial that grow in rows of vertical ...

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Soft magnetic material characterizations get a harder look

15-Nov-2017

In motors, generators and similar electric machines, the electrical current that powers them generates magnetic fields that magnetize some of the metallic components. Choosing the right magnetic material is crucial for designing efficient machines, so researchers from the Institute of Electrical ...

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Deep-depletion: A new concept for MOSFETs

01-Nov-2017

Silicon has provided enormous benefits to the power electronics industry. But performance of silicon-based power electronics is nearing maximum capacity. Enter wide bandgap (WBG) semiconductors. Seen as significantly more energy-efficient, they have emerged as leading contenders in developing ...

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Spin-current generation gets mid-IR boost with plasmonic metamaterial

12-Oct-2017

Over the last few years, researchers have demonstrated that light can serve as a spin-current generator, creating currents of angular momentum, in optical nanostructures known as plasmonic absorbers, opening up a new branch of spintronics called opto-spintronics. Recently, researchers have begun ...

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Probing exotic ices

12-Oct-2017

Water is everywhere. But it's not the same everywhere. When frozen under extreme pressures and temperatures, ice takes on a range of complex crystalline structures. Many of the properties and behaviors of these exotic ices remain mysterious, but a team of researchers recently provided new ...

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Tungsten offers nano-interconnects a path of least resistance

06-Oct-2017

As microchips become ever smaller and therefore faster, the shrinking size of their copper interconnects leads to increased electrical resistivity at the nanoscale. Finding a solution to this impending technical bottleneck is a major problem for the semiconductor industry. One promising ...

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Creative use of noise brings bio-inspired electronic improvement

27-Sep-2017

In conventional electronics, a great deal of effort is devoted to eliminating stochastic resonance (SR) -- the annoying hiss that generally hinders the detection of weak signals and degrades overall device performance. But, what if there were a way to exploit this effect to enhance signal ...

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