Harvard scientists have created the rarest material on earth.
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Category: materials – Page 300
Making small graphene devices more of a reality.
Since its discovery, graphene has held great promise as a two-dimensional (2D) metal with massless carriers and, thus, extremely high-mobility that is due to the character of the band structure that results in the so-called Dirac cone for the ideal, perfectly ordered crystal structure.
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3D printed bridge in Spain. Could this some day be our answer to reducing costs around US state and county infrastructure costs related to bridges and other structural repairs related to infrastructure?
The pedestrian crossing 3D-printed bridge installed in the urban park of Castilla La Mancha in Madrid, Spain, back in December is now ready to be used.
The 39-foot-long bridge was printed in micro-reinforced concrete at the Institute for Advanced Architecture of Catalonia.
In addition to the 3D printing, the production process was also environmentally friendly allowing the team to optimize the distribution of materials, minimize the amount of water, and recycle the raw material during manufacture.
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Luv this.
Researchers at The University of Manchester have developed a method of producing water-based and inkjet printable 2D material inks, which could bring 2D crystal heterostructures from the lab into real-world products.
Examples include efficient light detectors, and devices that are able to store information encoded in binary form which have been demonstrated, in collaboration with the University of Pisa.
Graphene is the world’s first 2D material: 200 times stronger than steel, lightweight, flexible and more conductive of copper. Since graphene’s isolation in 2004 the family of 2D materials has expanded.
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Wonder which 3D printer she used?
Together with scientists, fashion designers have used graphene — a Nobel-Prize winning material that’s tougher than diamonds — to give their LBD a high-tech cut.
“We are trying to showcase the amazing properties of graphene,” Francesca Rosella, the co-founder of fashion company CuteCircuit, told CNN.
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Graphene is extremely versatile and ideal for biosensor technology, BMI, etc. we really have just began understanding its capabilities.
An international team of researchers under the umbrella of the EU-funded Graphene Flagship have taken a significant step in thermal infrared (IR) photodetctors with the development of the most sensitive uncooled graphene-based thermal detector yet fabricated. These new photodetectors, known as bolometers, are so sensitive that they can register the presence of a scant few nanowatts of radiation. That level of radiation is about a thousandth of what would be given off by a hand waving in front of the detector.
In the research described in the journal Nature Communications, scientists from the University of Cambridge, UK; the Institute of Photonic Sciences (ICFO), Spain; the University of Ioannina, Greece; and from Nokia and Emberion found that the combination of graphene and pyroelectric materials—which generate a voltage when they are heated or cooled—yields a unique synergy that boosts the performance of thermal photodetectors.
The actual design of the device is fairly simple. The pyroelectric material acts as the substrate; a conductive channel made from single-layer graphene runs through it, and a floating gate electrode floats above it.
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