Ionic gel based carbon dioxide gas sensor

Author

Takei, Y. ; Honda, Masakazu ; Ishizu, Kentaro ; Noda, Kentaro ; Inaba, A. ; Itoh, Takayuki ; Maeda, Ryutaro ; Matsumoto, Kaname ; Shimoyama, Isao

Author_Institution

Univ. of Tokyo, Tokyo, Japan

fYear

2013

fDate

16-18 April 2013

Firstpage

1

Lastpage

4

Abstract

We propose a CO₂ gas sensor based on an impedance change of ionic gel (IG) according to the CO₂ gas concentration. The sensor consists of an IG film patterned on electrodes. The impedance of the IG changes when the IG absorbs CO₂ gas. CO₂ gas concentration can be detected by measuring the amount of impedance change. Our proposal sensor has a merit that power consumption is very low (<;1μW). It is because ionic liquid (IL) and IG have selective gas solubility and high impedance. The high impedance means that large current is not required for the measurement.

Keywords

absorption; carbon compounds; chemical variables measurement; electric impedance measurement; electrochemical electrodes; gas sensors; gels; thin film sensors; CO₂; IG film patterning; IL; carbon dioxide gas sensor; electrode; gas concentration detection; impedance measurement; ionic gel; ionic liquid; power consumption; selective gas solubility; Gas detectors; Impedance; Liquids; Power demand; Solvents; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP), 2013 Symposium on

Conference_Location

Barcelona

Print_ISBN

978-1-4673-4477-7

Type

conf

Filename

6559393