Highly Aldehyde Gas-Sensing Responsiveness and Selectivity of Layered Organic-Guest/MoO3-Host Hybrid Sensor

Toshio ITOH; Ichiro MATSUBARA; Woosuck SHIN; Noriya IZU; Maiko NISHIBORI

doi:10.2109/jcersj2.115.742

Feature: Young Researcher's Paper at Autumn Symposia: Notes

Highly Aldehyde Gas-Sensing Responsiveness and Selectivity of Layered Organic-Guest/MoO₃-Host Hybrid Sensor

Toshio ITOH, Ichiro MATSUBARA, Woosuck SHIN, Noriya IZU, Maiko NISHIBORI

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Keywords: Layered organic-inorganic hybrid, Gas sensor, Molybdenum trioxide, Formaldehyde, Acetaldehyde, Chemical vapor deposition

JOURNAL FREE ACCESS

2007 Volume 115 Issue 1347 Pages 742-744

DOI https://doi.org/10.2109/jcersj2.115.742

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Abstract

A layered organic/inorganic hybrid thin film, which consists of MoO₃ with poly(5,6,7,8-tetrahydro-1-naphthylamine) (PTHNA), which is used as an aldehyde gas sensor, was investigated by X-ray diffraction (XRD) analysis and gas-sensing properties analysis. The (PTHNA)_xMoO₃ hybrid thin film shows distinct increasing resistance response to acetaldehyde and little response to formaldehyde in ppb level whereas typical organic/MoO₃ hybrids show larger response to formaldehyde than to acetaldehyde or almost equal responses to formaldehyde and acetaldehyde in ppb level.

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