Nanostructures improve solar cell efficiency

To make solar cells a competitive alternative to other renewable energy sources, researchers are investigating different alternatives. A step in the right direction is through new processes that change the surfaces of silicon ...

Food 'Tattoos' an Alternative to Labels for Identifying Fruit

(PhysOrg.com) -- Those small and sometimes inconvenient sticky labels on produce may eventually be replaced by laser "tattoo" technology now being tested by Agricultural Research Service (ARS) and University of Florida scientists. ...

Laser etching safe alternative for labeling grapefruit

Laser labeling of fruit and vegetables is a new, patented technology in which a low-energy carbon dioxide laser beam is used to label, or "etch" information on produce, thereby eliminating the need for common sticker-type ...

Search for new semiconductors heats up with gallium oxide

University of Illinois electrical engineers have cleared another hurdle in high-power semiconductor fabrication by adding the field's hottest material—beta-gallium oxide—to their arsenal. Beta-gallium oxide is readily ...

New interferometer could simplify materials research

(PhysOrg.com) -- “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry ...

Nanoscientists invent better etching technique

(PhysOrg.com) -- Imagine yourself nano-sized, standing on the edge of a soon-to-be computer chip. Down shoots a beam of electrons, carving precise topography that is then etched the depth of the Grand Canyon into the chip. ...

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