Researchers have achieved a tiny high-power narrow-beam laser that operates in the terahertz frequencies. The new devices are the first terahertz laser devices to reach three key performance goals at once - high power, tight beam, and broad frequency tuning - in a design that can work outside a laboratory.
Dec 30th, 2020
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Researchers synthesized twisted molecular wires just one molecule thick that can conduct electricity with less resistance compared with previous devices. This work may lead to carbon-based electronic devices that require fewer toxic materials or harsh processing methods.
Dec 29th, 2020
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Physicists have published a 127-page review article on the so-called dynamical density functional theory (DDFT). This is a method for describing systems consisting of a large number of interacting particles such as are found in liquids, for example.
Dec 29th, 2020
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A fast, green and one-step method for producing porous carbon spheres, which are a vital component for carbon capture technology and for new ways of storing renewable energy.
Dec 28th, 2020
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The gallium selenide monolayer has been recently discovered to have an alternative crystal structure and has diverse potential applications in electronics. Understanding its properties is crucial to understand its functions.
Dec 28th, 2020
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Scientists propose a method to create a metal-organic framework sorbent for imidacloprid insecticide removal from water.
Dec 28th, 2020
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Pioneering high-speed atomic force microscope technology has now shed light on the structure and dynamics of some of life's most ubiquitous and inscrutable molecules - intrinsically disordered proteins.
Dec 28th, 2020
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Researchers performed an ultrafast microscopy experiment, where they trapped green light pulses of 20 fs duration as composite light-electron density fluctuation waves and imaged their propagation on a silver surface at the speed of light.
Dec 25th, 2020
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The device is one of the first to test how quantum effects, which govern the behavior of particles on the smallest scale, might one day be exploited to enhance the performance of nanotechnologies.
Dec 25th, 2020
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The structure and all details are made of polymer hardened by the scanning of a focused laser beam.
Dec 24th, 2020
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Researchers have discovered a way to make self-assembled nanowires of transition metal chalcogenides at scale using chemical vapor deposition. By changing the substrate where the wires form, they can tune how these wires are arranged, from aligned configurations of atomically thin sheets to random networks of bundles.
Dec 24th, 2020
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Theoretical physicists have developed mathematical formulas that describe a physical phenomenon happening within quantum dots and other nanosized materials. The formulas could be applied to further theoretical research about the physics of quantum dots, ultra-cold atomic gasses, and quarks.
Dec 23rd, 2020
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Scientists have developed a layered cobalt oxide with a record-setting thermoelectric figure of merit, which can be used to enhance thermoelectric power generation.
Dec 23rd, 2020
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Engineers are using ideas taken from paper-folding practices to create a sophisticated alternative to 3D printing.
Dec 22nd, 2020
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Researchers can now fill in missing information about nanoscale polymerization and 'smart' materials for medicine and the environment.
Dec 22nd, 2020
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Chemists have synthesized extremely unusual compounds. Their central building block is a silicon atom. Different from usual, however, is the arrangement of the four bonding partners of the atom, which are not in the form of a tetrahedron around it, but flat like a trapezoid.
Dec 22nd, 2020
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