Comparative NH3-sensing characteristic studies of PANI/TiO2 nanocomposite thin films doped with different acids

Huiling Tai; Yadong Jiang; Guangzhong Xie; Junsheng Yu; Zhihua Ying; Xuan Chen

doi:10.1117/12.792243

11 March 2008 Comparative NH₃-sensing characteristic studies of PANI/TiO₂ nanocomposite thin films doped with different acids

Huiling Tai, Yadong Jiang, Guangzhong Xie, Junsheng Yu, Zhihua Ying, Xuan Chen

Author Affiliations +

Proceedings Volume 6984, Sixth International Conference on Thin Film Physics and Applications; 69843P (2008) https://doi.org/10.1117/12.792243
Event: Sixth International Conference on Thin Film Physics and Applications, 2007, Shanghai, China

Abstract

Polyaniline/titanium dioxide (PANI/TiO₂) nanocomposite thin films were synthesized by in-situ self-assembly method, which were doped with p-toluene sulphonic acid (p-TSA) and hydrochloric acid (HCl), respectively. The thin films were characterized by using UV-Vis absorption spectroscopy and scanning electron microscope (SEM), and the NH₃ gas sensitive properties of the thin films were investigated at room temperature. The results showed that the PANI/TiO₂ thin film doped with HCl was superior to that doped with p-TSA in terms of response-recovery characteristics. The surface morphology characterization of the thin films were performed to explain the different gas-sensing properties.

Citation Download Citation

Huiling Tai, Yadong Jiang, Guangzhong Xie, Junsheng Yu, Zhihua Ying, and Xuan Chen "Comparative NH₃-sensing characteristic studies of PANI/TiO₂ nanocomposite thin films doped with different acids", Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 69843P (11 March 2008); https://doi.org/10.1117/12.792243

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