Field effect transistor type CO2 sensor attached with metal carbonate auxiliary phase

K. Shimanoe; K. Goto; K. Obata; S. Nakata; G. Sakai; N. Yamazoe

doi:10.1109/SENSOR.2003.1215254

Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase

K. Shimanoe, K. Goto, K. Obata, S. Nakata, G. Sakai, N. Yamazoe

Functional Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

FET type CO₂ sensor operative at room temperature was developed by combining with a metal carbonate auxiliary phase and metal oxide sensing electrode. In an attempt to lower the operating temperature and reduce the humidity dependence, the structure with Li₂CO₃-BaCO₃(1:3)-ITO/Na⁺ exchange membrane/FET was fabricated. The resulting device exhibited fairly excellent CO₂ sensing characteristics at room temperature (30°C), although the other devices failed to work at room temperature or suffered disturbance by humidity seriously. The V/sub GS/ for the best device obtained was linear to the logarithm of the CO₂ concentration, with its slopes indicating n=2.0 of theoretical value where n is the number of reaction electrons involved in the electrochemical reduction per CO₂. The times for 90% response and 90% recovery to switching-on and-off 3000 ppm CO₂ were 1 and 2 min, respectively, and all of the response transients reproduced very well in the successive runs.

Original language	English
Title of host publication	TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	65-68
Number of pages	4
ISBN (Electronic)	0780377311, 9780780377318
DOIs	https://doi.org/10.1109/SENSOR.2003.1215254
Publication status	Published - 2003
Event	12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers - Boston, United States Duration: Jun 8 2003 → Jun 12 2003

Publication series

Name	TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Volume	1

Other

Other	12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers
Country/Territory	United States
City	Boston
Period	6/8/03 → 6/12/03

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/SENSOR.2003.1215254

Cite this

Shimanoe, K., Goto, K., Obata, K., Nakata, S., Sakai, G., & Yamazoe, N. (2003). Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase. In TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers (pp. 65-68). Article 1215254 (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SENSOR.2003.1215254

Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase. / Shimanoe, K.; Goto, K.; Obata, K. et al.
TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2003. p. 65-68 1215254 (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shimanoe, K, Goto, K, Obata, K, Nakata, S, Sakai, G & Yamazoe, N 2003, Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase. in TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers., 1215254, TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers, vol. 1, Institute of Electrical and Electronics Engineers Inc., pp. 65-68, 12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers, Boston, United States, 6/8/03. https://doi.org/10.1109/SENSOR.2003.1215254

Shimanoe K, Goto K, Obata K, Nakata S, Sakai G, Yamazoe N. Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase. In TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc. 2003. p. 65-68. 1215254. (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers). doi: 10.1109/SENSOR.2003.1215254

Shimanoe, K. ; Goto, K. ; Obata, K. et al. / Field effect transistor type CO₂ sensor attached with metal carbonate auxiliary phase. TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2003. pp. 65-68 (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers).

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abstract = "FET type CO2 sensor operative at room temperature was developed by combining with a metal carbonate auxiliary phase and metal oxide sensing electrode. In an attempt to lower the operating temperature and reduce the humidity dependence, the structure with Li2CO3-BaCO3(1:3)-ITO/Na+ exchange membrane/FET was fabricated. The resulting device exhibited fairly excellent CO2 sensing characteristics at room temperature (30°C), although the other devices failed to work at room temperature or suffered disturbance by humidity seriously. The V/sub GS/ for the best device obtained was linear to the logarithm of the CO2 concentration, with its slopes indicating n=2.0 of theoretical value where n is the number of reaction electrons involved in the electrochemical reduction per CO2. The times for 90% response and 90% recovery to switching-on and-off 3000 ppm CO2 were 1 and 2 min, respectively, and all of the response transients reproduced very well in the successive runs.",

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AU - Sakai, G.

AU - Yamazoe, N.

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AB - FET type CO2 sensor operative at room temperature was developed by combining with a metal carbonate auxiliary phase and metal oxide sensing electrode. In an attempt to lower the operating temperature and reduce the humidity dependence, the structure with Li2CO3-BaCO3(1:3)-ITO/Na+ exchange membrane/FET was fabricated. The resulting device exhibited fairly excellent CO2 sensing characteristics at room temperature (30°C), although the other devices failed to work at room temperature or suffered disturbance by humidity seriously. The V/sub GS/ for the best device obtained was linear to the logarithm of the CO2 concentration, with its slopes indicating n=2.0 of theoretical value where n is the number of reaction electrons involved in the electrochemical reduction per CO2. The times for 90% response and 90% recovery to switching-on and-off 3000 ppm CO2 were 1 and 2 min, respectively, and all of the response transients reproduced very well in the successive runs.

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