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[Photonic] – Rewritable photonic paper. 10 décembre 2021

Photonic crystals are a new kind of material. Also known as photonic band gap material, they are similar to semiconductors, where the electrons are replaced by photons (i.e. light). By creating periodic structures out of materials with contrast in their dielectric constants, it becomes possible to guide the flow of light through the photonic crystals in a way similar to how electrons are directed through doped regions of semiconductors. The photonic band gap (that forbids propagation of a certain frequency range of light)…

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[Nanotechnology] – Nanocrystal gamechanger for clean hydrogen production. 29 septembre 2021

Curtin University research has identified a new, cheaper and more efficient electrocatalyst to make green hydrogen from water that could one day open new avenues for large-scale clean energy production.

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