Sensitivity improvement of TiO2-doped SnO2 to volatile organic compounds

Wen Zeng; Tianmo Liu; Zhongchang Wang

doi:10.1016/j.physe.2010.10.010

Sensitivity improvement of TiO₂-doped SnO₂ to volatile organic compounds

Wen Zeng, Tianmo Liu, Zhongchang Wang

Research output: Contribution to journal › Article › peer-review

84 Citations (Scopus)

Abstract

Most of volatile organic compounds (VOCs) are often harmful or even toxic for environment, which require in situ detection. Here, we demonstrate that the TiO₂ additive can enhance significantly gas-sensing properties of the SnO₂-based sensor to VOCs, independent of its content and the concentration of tested gases. The improved gas-sensing quantities of matter, i.e., maximum sensitivity, minimum gas concentration, optimal operating temperature, and response and recovery times, are found to satisfy the basic needs for a practical application, which renders the TiO₂SnO ₂ composite material promising for the development of sensor devices to VOCs.

Original language	English
Pages (from-to)	633-638
Number of pages	6
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	43
Issue number	2
DOIs	https://doi.org/10.1016/j.physe.2010.10.010
Publication status	Published - 2010 Dec

ASJC Scopus subject areas

Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials

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abstract = "Most of volatile organic compounds (VOCs) are often harmful or even toxic for environment, which require in situ detection. Here, we demonstrate that the TiO2 additive can enhance significantly gas-sensing properties of the SnO2-based sensor to VOCs, independent of its content and the concentration of tested gases. The improved gas-sensing quantities of matter, i.e., maximum sensitivity, minimum gas concentration, optimal operating temperature, and response and recovery times, are found to satisfy the basic needs for a practical application, which renders the TiO2SnO 2 composite material promising for the development of sensor devices to VOCs.",

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AU - Liu, Tianmo

AU - Wang, Zhongchang

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AB - Most of volatile organic compounds (VOCs) are often harmful or even toxic for environment, which require in situ detection. Here, we demonstrate that the TiO2 additive can enhance significantly gas-sensing properties of the SnO2-based sensor to VOCs, independent of its content and the concentration of tested gases. The improved gas-sensing quantities of matter, i.e., maximum sensitivity, minimum gas concentration, optimal operating temperature, and response and recovery times, are found to satisfy the basic needs for a practical application, which renders the TiO2SnO 2 composite material promising for the development of sensor devices to VOCs.

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