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    Piezoelectrics

    Material can turn sunlight, heat and movement Into electricity -- all at once

    Extracting energy from multiple sources could help power wearable technology.

    A perovskite solid-solution that exhibits tunable bandgaps in the visible light energy range is showing promising material for light absorption and conversion applications,(solar energy harvesting and light sensing).

    Such a common ABO3–type perovskite structure, most widely used for ferroelectrics and piezoelectrics, enables the same solid-solution material to be used for the simultaneous harvesting or sensing of solar, kinetic, and thermal energies.

    These results are considered to be a significant improvement compared to those of other compositions which could be used for the same applications. The results pave the way for the development of hybrid energy harvesters/sensors, which can convert multiple energy sources into electrical energy simultaneously in the same material.

    Source source Tag(s) solar, green tech, technology, smart materials, materials engineering
    Added 3 months ago view
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    The Federal Aviation Administration is funding research to make this costly conductive concrete more affordable.

    This special concrete mix, studded with electricity-conducting ingredients, could help airports and other places run on time during inclement weather.

    "Potholes often originate from the liberal use of salt or de-icing chemicals that can corrode concrete and contaminate groundwater over time, Tuan said, making the conductive concrete an appealing alternative with lower operating and maintenance costs. The power required to thermally de-ice the Roca Spur Bridge during a three-day storm typically costs about $250 -- several times less than a truckload of chemicals, he said."

    Other info: http://www.eurekalert.org/pub_releases/2016-01/uon-ccc012216.php

    Source source Tag(s) technology, building materials
    Added over 1 year ago view
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