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Hydrogen Detected by the Naked Eye: Optical Hydrogen Gas Sensors Based on Core/Shell Plasmonic Nanorod Metamaterials
Author(s) -
Nasir Mazhar E.,
Dickson Wayne,
Wurtz Gregory A.,
Wardley William P.,
Zayats Anatoly V.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201305958
Subject(s) - nanorod , materials science , plasmon , metamaterial , hydrogen , naked eye , core (optical fiber) , nanotechnology , shell (structure) , optoelectronics , optics , composite material , physics , quantum mechanics , fluorescence
Gold‐core/palladium‐shell metamaterials for hydrogen detection are presented. The more than 30% change in both the reflection and transmission from the metamaterial layer that is observed when the layer is exposed to 2% hydrogen mixture is clearly noticeable to the naked eye as a change in the brightness of light transmitted by the metamaterial. This sensor should make a contribution to the safety of processes involving hydrogen.