Characterization of nano-sized SrTi1±xO 3-δ metal oxide semiconducting oxygen gas sensors for near human-body temperature application

Y. Hu; O. K. Tan; W. Zhu

doi:10.1109/ICSENS.2005.1597825

Characterization of nano-sized SrTi_1±xO _3-δ metal oxide semiconducting oxygen gas sensors for near human-body temperature application

Y. Hu^*, O. K. Tan, W. Zhu

^*Corresponding author for this work

Nanyang Technological University

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

2 Citations (Scopus)

Abstract

The X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that nano-sized SrTi_1±O_3-δ material series (27 nm) with perovskite structure can be synthesized using the high-energy ball milling technique. The thick-film screen printed nano-sized SrTi_1±O_3-δ -based sensor series with annealing temperature of 400°C are found to have good oxygen sensing property at near-human body temperature for the first time for such a low temperature. The effect of the deviating stoichiometry of the nano-sized SrTi_1±O_3-δ-based sensors on their sensing properties was also investigated. The optimal relative resistance (R _nitrogen/R_{20% oxygen}) value of 6.35 was obtained by nano-sized SrTiO_3-δ-based sensor at 40°C operating temperature. Their near-human body operating temperature is much lower than that of the conventional low temperature semiconducting oxygen gas sensors (300-500°C) and SrTiO₃ oxygen sensors (>700°C). This can extend the application of the semiconducting oxygen gas sensors from the conventional high and medium temperature to the lower operating temperature areas such as the medical, environmental and domestic fields etc..

Original language	English
Title of host publication	Proceedings of the Fourth IEEE Conference on Sensors 2005
Pages	818-821
Number of pages	4
DOIs	https://doi.org/10.1109/ICSENS.2005.1597825
Publication status	Published - 2005
Externally published	Yes
Event	Fourth IEEE Conference on Sensors 2005 - Irvine, CA, United States Duration: Oct 31 2005 → Nov 3 2005

Publication series

Name	Proceedings of IEEE Sensors
Volume	2005

Conference

Conference	Fourth IEEE Conference on Sensors 2005
Country/Territory	United States
City	Irvine, CA
Period	10/31/05 → 11/3/05

ASJC Scopus Subject Areas

Electrical and Electronic Engineering

Access to Document

10.1109/ICSENS.2005.1597825

Cite this

@inproceedings{0c90b0532d594a45999275ca0ca27fa9,

title = "Characterization of nano-sized SrTi1±xO 3-δ metal oxide semiconducting oxygen gas sensors for near human-body temperature application",

abstract = "The X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that nano-sized SrTi1±O3-δ material series (27 nm) with perovskite structure can be synthesized using the high-energy ball milling technique. The thick-film screen printed nano-sized SrTi1±O3-δ -based sensor series with annealing temperature of 400°C are found to have good oxygen sensing property at near-human body temperature for the first time for such a low temperature. The effect of the deviating stoichiometry of the nano-sized SrTi1±O3-δ-based sensors on their sensing properties was also investigated. The optimal relative resistance (R nitrogen/R20\% oxygen) value of 6.35 was obtained by nano-sized SrTiO3-δ-based sensor at 40°C operating temperature. Their near-human body operating temperature is much lower than that of the conventional low temperature semiconducting oxygen gas sensors (300-500°C) and SrTiO3 oxygen sensors (>700°C). This can extend the application of the semiconducting oxygen gas sensors from the conventional high and medium temperature to the lower operating temperature areas such as the medical, environmental and domestic fields etc..",

author = "Y. Hu and Tan, \{O. K.\} and W. Zhu",

year = "2005",

doi = "10.1109/ICSENS.2005.1597825",

language = "English",

isbn = "0780390563",

series = "Proceedings of IEEE Sensors",

pages = "818--821",

booktitle = "Proceedings of the Fourth IEEE Conference on Sensors 2005",

note = "Fourth IEEE Conference on Sensors 2005 ; Conference date: 31-10-2005 Through 03-11-2005",

}

Hu, Y, Tan, OK & Zhu, W 2005, Characterization of nano-sized SrTi_1±xO _3-δ metal oxide semiconducting oxygen gas sensors for near human-body temperature application. in Proceedings of the Fourth IEEE Conference on Sensors 2005., 1597825, Proceedings of IEEE Sensors, vol. 2005, pp. 818-821, Fourth IEEE Conference on Sensors 2005, Irvine, CA, United States, 10/31/05. https://doi.org/10.1109/ICSENS.2005.1597825

Characterization of nano-sized SrTi_1±xO _3-δ metal oxide semiconducting oxygen gas sensors for near human-body temperature application. / Hu, Y.; Tan, O. K.; Zhu, W.
Proceedings of the Fourth IEEE Conference on Sensors 2005. 2005. p. 818-821 1597825 (Proceedings of IEEE Sensors; Vol. 2005).

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

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N2 - The X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that nano-sized SrTi1±O3-δ material series (27 nm) with perovskite structure can be synthesized using the high-energy ball milling technique. The thick-film screen printed nano-sized SrTi1±O3-δ -based sensor series with annealing temperature of 400°C are found to have good oxygen sensing property at near-human body temperature for the first time for such a low temperature. The effect of the deviating stoichiometry of the nano-sized SrTi1±O3-δ-based sensors on their sensing properties was also investigated. The optimal relative resistance (R nitrogen/R20% oxygen) value of 6.35 was obtained by nano-sized SrTiO3-δ-based sensor at 40°C operating temperature. Their near-human body operating temperature is much lower than that of the conventional low temperature semiconducting oxygen gas sensors (300-500°C) and SrTiO3 oxygen sensors (>700°C). This can extend the application of the semiconducting oxygen gas sensors from the conventional high and medium temperature to the lower operating temperature areas such as the medical, environmental and domestic fields etc..

AB - The X-ray diffraction (XRD) and transmission electron microscope (TEM) results show that nano-sized SrTi1±O3-δ material series (27 nm) with perovskite structure can be synthesized using the high-energy ball milling technique. The thick-film screen printed nano-sized SrTi1±O3-δ -based sensor series with annealing temperature of 400°C are found to have good oxygen sensing property at near-human body temperature for the first time for such a low temperature. The effect of the deviating stoichiometry of the nano-sized SrTi1±O3-δ-based sensors on their sensing properties was also investigated. The optimal relative resistance (R nitrogen/R20% oxygen) value of 6.35 was obtained by nano-sized SrTiO3-δ-based sensor at 40°C operating temperature. Their near-human body operating temperature is much lower than that of the conventional low temperature semiconducting oxygen gas sensors (300-500°C) and SrTiO3 oxygen sensors (>700°C). This can extend the application of the semiconducting oxygen gas sensors from the conventional high and medium temperature to the lower operating temperature areas such as the medical, environmental and domestic fields etc..

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