IIT Delhi develops device to generate electricity from raindrops, ocean waves

Researchers at the Indian Institute of Technology (IIT) Delhi have designed a device which can generate electricity from raindrops, water drops, water streams, and ocean waves.

The device is called liquid-solid interface triboelectric nanogenerator. The device consists of specially designed nanocomposite polymers and contact electrodes to generate a few milliwatt power. Electricity is generated by from the device using the triboelectric effect and electrostatic induction and the electricity so generate can be stored in batteries for further use.

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