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Tag Archives: crystals

New photonic liquid crystals could lead to next-generation displays and advanced photonic applications

10th November 2019 ( Nanowerk News ) A new technique for changing the structure of liquid crystals could lead to the development of fast-reacting liquid crystals suitable for next generation displays, e.g. For example, 3-D, augmented and virtual reality and advanced photonic applications such as mirrorless lasers, biosensors and fast / slow light generation, according to an international team of …

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The secret behind crystals that shrink when heated

This animation shows how solid crystals of scandium fluoride shrink when heated. While the bonds between scandium (green) and fluorine atoms (blue) remain relatively rigid, the fluorine atoms oscillate independently along the sides of the cubic crystals, resulting in a wide range of distances between adjacent fluorine atoms. The higher the temperature, the greater the kinking on the sides of …

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Alien crystals, as they are not found on Earth, could crust the edges of the Titan lakes

Scientists have modeled titanium-like conditions in a laboratory and found that organic molecules from the titanium atmosphere could form rings of foreign crystals around the methane lakes that cover the surface of the Saturn moon. Previously, the team led by NASA's Jet Propulsion Laboratory researchers discovered two of these "molecular minerals." Now they have discovered a third substance consisting of …

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Saturn's moon Titan might be covered with extraterrestrial crystals

False-colored near-infrared view of the northern hemisphere of Titan taken by the NASA spacecraft Cassini showing the seas and lakes of the moon. Orange areas near some of them may be deposits of organic vaporization minerals left by the retreat of liquid hydrocarbon. Photo credits: NASA / JPL-Caltech / Space Science Institute The cold seashores of Saturn's moon, Titan, may …

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X-ray technology illuminates tiny, rare crystals in a new light

These diagrams show the atomic crystal structure of ognitite. On the left, atoms in the crystal structure are shown in red (nickel), white (tellurium) and gray (bismuth). On the right a polyhedral representation of the crystal structure. Photo credits: Mineralogical Magazine, DOI: 10.1180 / mgm.2019.31 Like a tiny needle in a sprawling hay field, a ten-million -three-meter single crystal grain …

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2D crystals that match the 3D curves are a burden on the development of quantum devices

Strain-tolerant, single-layer triangular crystals of WS2 were grown on SiO2 substrates that were patterned with donut-shaped columns, as shown in the scanning electron microscope (below) and atomic force microscope (center) picture elements. The curvature of the columns induced voltages in the overlying crystals that locally altered their optoelectronic properties, as shown in bright areas of photoluminescence (top). Credit: Christopher Rouleau …

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Astronomers discover the first direct clues to white dwarf stars that solidify into crystals

White dwarf star in the solidification process. Picture credits: University of Warwick / Mark Garlick The first direct evidence of white dwarf stars solidifying into crystals was discovered by astronomers at the University of Warwick, and our skies are filled with them. Observations have revealed that dead remnants of stars such as our sun called white dwarfs have a core …

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Researchers 3D print colloidal crystals

Home Nanotechnology Nanomaterials 30. August 2018 30. August 2018 by Jennifer Chu of the Massachusetts Institute of Technology Nanoparticles delivered from a needle to a rotating stage organize a helix of billions of nanoparticles. Credit Score: Alvin Tan MIT's engineers have combined the principles of self-organization and 3-D printing into a new purpose that highlights them at the novel time …

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