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E.g., 02/20/2018
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  • 2-D material illustration
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Your search has returned 446 articles:
  • News

    New technique shows how 2-D thin films take the heat

    High-energy particle beams can reveal how 2-D thin sheets behave when the heat is cranked up.

    Researchers have devised a way to track how these materials, such as the supermaterial graphene, expand or contract as temperatures rise (SN: 10/3/15, p. 7). This technique, described in the Feb. 2 Physical Review Letters, showed that 2-D semiconductors arranged in single-atom-thick sheets...

    02/13/2018 - 11:26 Materials, Physics, Technology
  • Teaser

    Smart windows could block brightness and harness light

    Who needs curtains? One day, you could block out afternoon glare and heat with changeable windows that absorb sunshine to charge your electronics.

    A high-tech prototype panel described online January 22 in Nature Materials, switches between transparent pane and dark-tinted solar cell. The layer in the panel that’s responsible for soaking up sun has atoms that only arrange themselves into...

    02/08/2018 - 09:00 Materials, Technology
  • Feature

    Skyrmions open a door to next-level data storage

    Like sailors and spelunkers, physicists know the power of a sturdy knot.

    Some physicists have tied their hopes for a new generation of data storage to minuscule knotlike structures called skyrmions, which can form in magnetic materials. Incredibly tiny and tough to undo, magnetic skyrmions could help feed humankind’s hunger for ever-smaller electronics.

    On traditional hard drives,...

    02/07/2018 - 15:03 Materials, Physics
  • News in Brief

    Superdense wood is lightweight, but strong as steel

    View the video

    Newly fabricated superstrong lumber gives a whole new meaning to “hardwood.”

    This ultracompact wood, described in the Feb. 8 Nature, is created by boiling a wood block in a water-based solution of sodium hydroxide and sodium sulfite. The chemicals partially strip the wood of substances called lignin and hemicellulose, which help give wood its structure and rigidity....

    02/07/2018 - 13:00 Materials, Technology
  • Teaser

    New textile weathers temperature shift

    Weather changes, but thanks to a new high-tech textile, someday you may not have to switch out your outfit.

    Materials scientists and engineers at Stanford University have developed a multilayered textile that traps body heat on one side and passively radiates heat away from the body when flipped inside out. The material kept artificial skin within a comfortable range of 32° to 36...

    02/02/2018 - 11:27 Materials, Technology, Chemistry
  • News

    New laser emits a more stable, energy-efficient light beam

    A new type of laser is modeled after an exotic class of materials called topological insulators. And it’s proving more reliable and energy-efficient than its conventional counterparts, paving the way for possible use in quantum communication and next-generation electronics.

    The device, described online February 1 in Science, is composed of a grid of semiconductor rings that convert...

    02/01/2018 - 14:35 Technology, Physics, Materials
  • News

    New device can transmit underwater sound to air

    Don’t expect to play a game of Marco Polo by shouting from beneath the pool’s surface. No one will hear you because, normally, only about 0.1 percent of sound is transmitted from water to the air. But a new type of device might one day help.

    Researchers have designed a new metamaterial — a type of material that behaves in ways conventional materials can’t — that increases sound...

    01/23/2018 - 13:00 Materials, Physics
  • News

    Ultrathin 2-D metals get their own periodic table

    A new version of the periodic table showcases the predicted properties of 2-D metals, an obscure class of synthetic materials.

    Arrayed in 1-atom-thick sheets, most of these 2-D metals have yet to be seen in the real world. So Janne Nevalaita and Pekka Koskinen, physicists at the University of Jyväskylä in Finland, simulated 2-D materials of 45 metallic elements, ranging from lithium to...

    01/17/2018 - 16:34 Materials, Physics, Chemistry
  • News

    This artificial cartilage gets its strength from the stuff in bulletproof vests

    A new kind of artificial cartilage, made with the same kind of fiber that fortifies bulletproof vests, is proving stronger than others.

    The fabricated material mimics the stiffness, toughness and water content of natural cartilage, researchers report in the Jan. 4 Advanced Materials. This synthetic tissue could replace the cartilage in a person’s body that naturally wears down and heals...

    01/10/2018 - 07:00 Materials, Biophysics
  • News

    Electric eels provide a zap of inspiration for a new kind of power source

    New power sources bear a shocking resemblance to the electricity-making organs inside electric eels.

    These artificial electric eel organs are made up of water-based polymer mixes called hydrogels. Such soft, flexible battery-like devices, described online December 13 in Nature, could power soft robots or next-gen wearable and implantable tech.

    “It’s a very smart approach” to...

    12/13/2017 - 13:22 Technology, Chemistry, Materials