Patent
Chromogenic humidity sensor
Moon Jeong Park,Eun Young Kim +1 more
- 06 May 2013
3
TL;DR: In this article, a real-time chromogenic humidity sensor with a polyelectrolyte thin film is described. But the color and resistance of the hybrid hygrometer are not specified.
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Abstract: The present invention relates to a humidity sensor, and more particularly, to a resistance film-type real-time chromogenic humidity sensor produced with a polyelectrolyte thin film. The humidity sensor according to the present invention is a chromogenic hygrometer in which a polyelectrolyte nano thin film that absorbs moisture is formed on a reflective layer, and the nano thin film varies terms of color and electrical resistance as moisture is absorbed and the thickness varies. The hygrometer according to the present invention is a dual-function hygrometer, the color and resistance of which vary. Provided is the chromogenic hygrometer in which the sensor made using a PSS-b-PMB thin film varies in color between purple, blue, green, yellow, orange, and red according to humidity at a very high response speed of within one minute.
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Citations
Patent
Colorimetric photonic crystal structure and colorimetric photonic crystal sensor using the same
Jung Seo Hyun,Park Jong Mok,Kong Ho Youl,Bae Ja Young +3 more
- 19 Jun 2017
TL;DR: In this paper, a colorimetric photonic crystal structure comprising a high-refractive index layer using a copolymer simultaneously comprising a repeat unit containing a quaternary ammonium ion and a repeat units derived from an acrylate- or acrylamide-based monomer having a photoactive functional group is presented.
9
Patent
Color conversion humidity sensor
Jung Seo Hyun,Park Jong Mok,Kong Ho Youl,Lee Se Yeong +3 more
- 04 Mar 2019
TL;DR: In this paper, a color can be converted to be visually determined in accordance with a humidity change by using the photonic crystal structure, which consists of a first refractive index layer including a first polymer exhibiting a first this paper.
2
Patent
Photonic crystal structure and colorimetric sensor comprising same
Jung Seo Hyun,Park Jong Mok,Kong Ho Youl,Lee Se Yeong +3 more
- 28 Feb 2019
TL;DR: In this paper, a photonic crystal structure which varies in color when an external stimulus is applied to the crystal, so that it is possible to change color according to inorganic acids corresponding to external stimuli so as to visually determine the type of inorganic acid.
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Patent
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Patent
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Patent
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