Hydrogen sensing device that can visually detect the presence of hydrogen through color change according to the water formation reaction
AssigneeKorea Institute of Science and Technology
InventorsYong-Sang Ryu, Yusin Pak, Jongsu Lee, Taehyun Kim, Eui-Sang Yu
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Abstract
The disclosure relates to a hydrogen sensing device capable of visually detecting the presence of hydrogen through a color change according to a water-forming reaction by inducing the water-forming reaction between hydrogen and oxygen at the interface between a lower metal layer and a dielectric layer under a structure in which a lower metal layer, a dielectric layer, and an upper metal layer are sequentially stacked, and visually sensing the color change caused by the generated water.
Claims13
A hydrogen sensing device which visually identifies presence of hydrogen through a color change according to a water-forming reaction, the hydrogen sensing device comprising:
- a structure in which a lower metal layer, a dielectric layer, and an upper metal layer are sequentially stacked on a substrate,
- wherein the structure has a structural color,
- in an environment where hydrogen and oxygen exist, water is formed by a reaction of the hydrogen and the oxygen at an interface between the dielectric layer and the lower metal layer, and
- the structural color is changed when the water is formed,
- wherein in the environment where the hydrogen and the oxygen exist, the water is formed by the reaction of the hydrogen and the oxygen at the interface between the dielectric layer and the lower metal layer,
- wherein the water is formed to a uniform thickness at the interface between the dielectric layer and the lower metal layer,
- wherein the water is formed in a case that the hydrogen sensing device is exposed to the hydrogen in advance and the oxygen is supplied in a state in which the lower metal layer is hydrogenated.
A hydrogen sensing device which visually identifies presence of hydrogen through a color change according to a water-forming reaction, the hydrogen sensing device comprising:
- a structure in which a lower metal layer, a dielectric layer, and an upper metal layer are sequentially stacked on a substrate,
- wherein the structure has a structural color,
- in an environment where hydrogen and oxygen exist, water is formed by a reaction of the hydrogen and the oxygen at an interface between the dielectric layer and the lower metal layer, and
- the structural color is changed when the water is formed, wherein the dielectric layer includes at least one of poly{perfluoro(butenyl vinyl ether)} (PBVE), and perfluoro(2,2-dimethyl-1,3-dioxole) (PDD).
A hydrogen sensing device which visually identifies presence of hydrogen through a color change according to a water-forming reaction, the hydrogen sensing device comprising:
- a structure in which a lower metal layer, a dielectric layer, and an upper metal layer are sequentially stacked on a substrate,
- wherein the structure has a structural color,
- in an environment where hydrogen and oxygen exist, water is formed by a reaction of the hydrogen and the oxygen at an interface between the dielectric layer and the lower metal layer, and
- the structural color is changed when the water is formed,
- wherein in the environment where the hydrogen and the oxygen exist, the water is formed by the reaction of the hydrogen and the oxygen at the interface between the dielectric layer and the lower metal layer,
- the water is formed to a non-uniform thickness at the interface between the dielectric layer and the lower metal layer.
Dependencies are inferred from the claim text.