Tag Archives | Graphene
Scientists Measure Speedy Electrons in Silicon

Scientists Measure Speedy Electrons in Silicon

The entire semiconductor industry, not to mention Silicon Valley, is built on the propensity of electrons in silicon to get kicked out of their atomic shells and become free. These mobile electrons are routed and switched though transistors, carrying the digital information that characterizes our age.   An international team of physicists and chemists based [...]

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Thin Film Produces New Chemistry in ‘Nanoreactor’

Thin Film Produces New Chemistry in ‘Nanoreactor’

Physicists at the University of Groningen led by Professor of Functional Nanomaterials Beatriz Noheda have discovered a new manganese compound that is produced by tension in the crystal structure of terbium manganese oxide. The technique they used to create this new material could open the way to new nanoscale circuits. Their findings were published on [...]

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Engineers Efficiently ‘Mix’ Light at Nanoscale

Engineers Efficiently ‘Mix’ Light at Nanoscale

The race to make computer components smaller and faster and use less power is pushing the limits of the properties of electrons in a material. Photonic systems could eventually replace electronic ones, but the fundamentals of computation, mixing two inputs into a single output, currently require too much space and power when done with light. [...]

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Blue LED Breakthrough for Efficient Electronics

Blue LED Breakthrough for Efficient Electronics

In a step that could lead to longer battery life in smartphones and lower power consumption for large-screen televisions, researchers at the University of Michigan have extended the lifetime of blue organic light emitting diodes by a factor of 10.   Blue OLEDs are one of a trio of colors used in OLED displays such [...]

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Future Flexible Electronics Based on Carbon Nanotubes

Future Flexible Electronics Based on Carbon Nanotubes

Researchers from the University of Texas at Austin and Northwestern University have demonstrated a new method to improve the reliability and performance of transistors and circuits based on carbon nanotubes (CNT), a semiconductor material that has long been considered by scientists as one of the most promising successors to silicon for smaller, faster and cheaper [...]

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Graphene: When a Doughnut Becomes an Apple

Graphene: When a Doughnut Becomes an Apple

In experiments using the wonder material graphene, ETH researchers have been able to demonstrate a phenomenon predicted by a Russian physicist more than 50 years ago. They analysed a layer structure that experts believe may hold unimagined promise.   Anastasia Varlet works as a doctoral candidate in the research group headed by ETH Professor Klaus [...]

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Moving Silicon Atoms in Graphene

Moving Silicon Atoms in Graphene

Richard Feynman famously posed the question in 1959: is it possible to see and manipulate individual atoms in materials? For a time his vision seemed more science fiction than science, but starting with groundbreaking experiments in the late 1980s and more recent developments in electron microscopy instrumentation it has become scientific reality. However, damage caused [...]

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First Graphene-Based Flexible Display

First Graphene-Based Flexible Display

A flexible display incorporating graphene in its pixels’ electronics has been successfully demonstrated by the Cambridge Graphene Centre and Plastic Logic, the first time graphene has been used in a transistor-based flexible device.   The partnership between the two organisations combines the graphene expertise of the Cambridge Graphene Centre (CGC), with the transistor and display [...]

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Atomically Thin Material Opens Door for Integrated Nanophotonic Circuits

Atomically Thin Material Opens Door for Integrated Nanophotonic Circuits

A new combination of materials can efficiently guide electricity and light along the same tiny wire, a finding that could be a step towards building computer chips capable of transporting digital information at the speed of light.   Reporting today in The Optical Society’s (OSA) journal Optica, optical and material scientists at the University of [...]

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A Transistor-Like Amplifier for Single Photons

A Transistor-Like Amplifier for Single Photons

Data transmission over long distances usually utilizes optical techniques via glass fibres — this ensures high speed transmission combined with low power dissipation of the signal. For quite some years possibilities have been explored how to go one step further and perform all-optical data processing, with optical transistors and optical logic gates. In particular in [...]

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