News tagged with voltage

Electrified graphene a shutter for light

(Phys.org) -- An applied electric voltage can prompt a centimeter-square slice of graphene to change and control the transmission of electromagnetic radiation with wavelengths from the terahertz to the midinfrared.

dateJun 15, 2012 in Nanophysics
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Researchers develop battery-less chemical detector

(PhysOrg.com) -- Unlike many conventional chemical detectors that require an external power source, Lawrence Livermore researchers have developed a nanosensor that relies on semiconductor nanowires, rather than traditional ...

dateApr 06, 2011 in Nanophysics
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