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Hydrogen gas sensing by metasurfaces composed of aluminum doped zinc oxide nanotubes

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Abstract

We demonstrate optical hydrogen sensing using metasurfaces based on aluminum-doped zinc oxide (AZO) nanotubes. The sensing system shows 2-13 nm of resonance wavelength shift upon exposure to hydrogen gas of concentration 0.7-4.0 % within 10 minutes.

© 2020 The Author(s)

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