Artificial leaf for harnessing sunlight

Using a nanocomposite, researchers have made a thin-film device that can absorb sunlight like a natural leaf and split water, making it potentially useful for generating hydrogen fuel1.

Producing hydrogen by harnessing the Sun’s power depends on various factors such as light-absorbing efficiency, charge separation and migration in a photocatalyst. It is difficult to make such a versatile catalyst. Most catalysts can absorb only the ultraviolet rays of sunlight.

Scientists from the CSIR-National Chemical Laboratory, Pune, prepared a wireless photochemical cell by using a nanocomposite made of gold nanoparticles, titanium dioxide and specific quantum dots. read more

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