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An illustration of the new hydrogen sensor

Image   •   Apr 11, 2019 07:01 BST

The Chalmers-developed sensor is based on an optical phenomenon – a plasmon – which occurs when metal nanoparticles are illuminated and capture light of a certain wavelength. The optical nanosensor contains millions of metal nanoparticles of a palladium-gold alloy, a material which is known for its sponge-like ability to absorb large amounts of hydrogen. The plasmon effect then causes the sensor to change colour when the amount of hydrogen in the environment changes.
License Media Use (?)
Photographer / Source Ella Marushchenko
Size 3.74 MB
Format .tiff
Image dimensions 1000 x 1300 pixels