Sensitivity improvement of TiO2-doped SnO2 to volatile organic compounds

Wen Zeng, Tianmo Liu, Zhongchang Wang

    Research output: Contribution to journalArticlepeer-review

    93 Citations (Scopus)


    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 languageEnglish
    Pages (from-to)633-638
    Number of pages6
    JournalPhysica E: Low-Dimensional Systems and Nanostructures
    Issue number2
    Publication statusPublished - 2010 Dec

    ASJC Scopus subject areas

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


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