Piezoelectric gold : strong charge-load response in a metal-based hybrid nanomaterial

Charlotte Stenner, Li-Hua Shao, Nadiia Mameka & Jörg Weissmüller
Impregnating the pores of nanoporous gold with aqueous electrolyte yields a hybrid nanomaterial with two separate and interpenetrating charge transport paths, electronic conduction in the metal and ionic conduction in the electrolyte. As the two paths are capacitively connected, space‐charge layers along the internal interfaces are coupled to electric potential differences between the paths and can be controlled or detected thereby. The present experiments show that the space charge couples to mechanical deformation of the...
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