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    Harnessing Solar and Wind Energy in One Device tagged posts

    Harnessing Solar and Wind Energy in One Device could Power the ‘Internet of Things’

    May 25, 2016, Categories  Physics, Technology/Electronics

    Hybrid solar and wind harvesting cells on the top of this model house collect enough energy to light it up inside. Credit: American Chemical Society

    Hybrid solar and wind harvesting cells on the top of this model house collect enough energy to light it up inside. Credit: American Chemical Society

    The “Internet of Things” could make cities “smarter” by connecting an extensive network of tiny communications devices to make life more efficient. But all these machines will require a lot of energy. Rather than adding to the global reliance on fossil fuels to power the network, researchers report on a single device that harvests wind and solar energy appears in the journal ACS Nano.

    hybridized nanogenerator, including a solar cell (SC) and a triboelectric nanogenerator (TENG), that can individually/simultaneously scavenge solar and wind energies, which can be extensively installed on the roofs of the city buildings. Under the same device area of about 120 mm × 22 mm, the SC can deliver a largest output power of about 8 mW, while the output power of the TENG can be up to 26 mW. Impedance matching between the SC and TENG has been achieved by using a transformer to decrease the impedance of the TENG. The hybridized nanogenerator has a larger output current and a better charging performance than that of the individual SC or TENG. This research presents a feasible approach to maximize solar and wind energies scavenging from the city environments with the aim to realize some self-powered functions in smart city.

    Hybridized nanogenerator, including a solar cell (SC) and a triboelectric nanogenerator (TENG), that can individually/simultaneously scavenge solar and wind energies, which can be extensively installed on the roofs of the city buildings...

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