Humidity sensor element, device and method for manufacturing thereof
First Claim
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1. A method for manufacturing humidity sensor element, comprising the steps of:
- providing a substrate;
disposing at least a pair of electrodes on said substrate;
mixing carbon nanotube and perfluorinated polymer solution with acid functional groups as a humidity sensing material;
coating said humidity sensing material on said electrodes by means of spin-coating method; and
drying said humidity sensing material to form a humidity sensor element having a single layer nanocomposite film;
wherein the mixing ratio of carbon nanotube to perfluorinated polymer with acid functional groups is 0.01 to 20 by weight.
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Abstract
A humidity sensor element, a humidity sensor device and a method for manufacturing thereof are provided. The humidity sensor element includes a substrate having a nanocomposite film as sensing material, wherein said nanocomposite film consists of carbon nanotube/perfluorinated polymer with acid functional groups in weight ratio of 0.01-20; and at least a pair of electrodes, which contact with the sensing material at one or both side(s). The nanocomposite film increases the sensitivity of humidity sensor element such that even an infinitesimal amount of moisture can be detected with minimum detection limit of 15.76 ppmv.
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6 Claims
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1. A method for manufacturing humidity sensor element, comprising the steps of:
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providing a substrate; disposing at least a pair of electrodes on said substrate; mixing carbon nanotube and perfluorinated polymer solution with acid functional groups as a humidity sensing material; coating said humidity sensing material on said electrodes by means of spin-coating method; and drying said humidity sensing material to form a humidity sensor element having a single layer nanocomposite film; wherein the mixing ratio of carbon nanotube to perfluorinated polymer with acid functional groups is 0.01 to 20 by weight. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification