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Hamamatsu Corp. - Earth Innovations LB 2/24

LEDs May Yield Chemical Sensors

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Hank Hogan

A class of devices based on LEDs promises to enable the development of cost-effective smart sensors. Researchers at the University of Wisconsin have demonstrated that the chemical sensors, fabricated from standard semiconductor materials, can detect amine gases and sulfur dioxide over a range of concentrations. The devices offer a number of advantages. "They use very little power," said Arthur Ellis, a professor of chemistry and a member of the research team. "They're lightweight. One could imagine using arrays of these." The sensors consist of interdigitated fingers of...Read full article

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    Published: April 2001
    Basic SciencechemicalsCoatingsResearch & TechnologySensors & DetectorsTech Pulse

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