Engineering crystalline quasi-two-dimensional polyaniline thin film with enhanced electrical and chemiresistive sensing performances

Tao Zhang, Haoyuan Qi, Zhongquan Liao, Yehu David Horev, Luis Antonio Panes-Ruiz, Petko St. Petkov, Zhe Zhang, Rishi Shivhare, Panpan Zhang, Kejun Liu, Viktor Bezugly, Shaohua Liu, Zhikun Zheng, Stefan Mannsfeld, Thomas Heine, Gianaurelio Cuniberti, Hossam Haick, Ehrenfried Zschech, Ute Kaiser, Renhao Dong and Xinliang Feng ()
Additional contact information
Tao Zhang: Technische Universität Dresden
Haoyuan Qi: Universität Ulm
Zhongquan Liao: Fraunhofer Institute for Ceramic Technologies and Systems (IKTS)
Yehu David Horev: Technion-Israel Institute of Technology
Luis Antonio Panes-Ruiz: Technische Universität Dresden
Petko St. Petkov: Leipzig University
Zhe Zhang: Technische Universität Dresden
Rishi Shivhare: Technische Universität Dresden
Panpan Zhang: Technische Universität Dresden
Kejun Liu: Technische Universität Dresden
Viktor Bezugly: Technische Universität Dresden
Shaohua Liu: Technische Universität Dresden
Zhikun Zheng: Technische Universität Dresden
Stefan Mannsfeld: Technische Universität Dresden
Thomas Heine: Technische Universität Dresden
Gianaurelio Cuniberti: Technische Universität Dresden
Hossam Haick: Technion-Israel Institute of Technology
Ehrenfried Zschech: Technische Universität Dresden
Ute Kaiser: Universität Ulm
Renhao Dong: Technische Universität Dresden
Xinliang Feng: Technische Universität Dresden

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract Engineering conducting polymer thin films with morphological homogeneity and long-range molecular ordering is intriguing to achieve high-performance organic electronics. Polyaniline (PANI) has attracted considerable interest due to its appealing electrical conductivity and diverse chemistry. However, the synthesis of large-area PANI thin film and the control of its crystallinity and thickness remain challenging because of the complex intermolecular interactions of aniline oligomers. Here we report a facile route combining air-water interface and surfactant monolayer as templates to synthesize crystalline quasi-two-dimensional (q2D) PANI with lateral size ~50 cm2 and tunable thickness (2.6–30 nm). The achieved q2D PANI exhibits anisotropic charge transport and a lateral conductivity up to 160 S cm−1 doped by hydrogen chloride (HCl). Moreover, the q2D PANI displays superior chemiresistive sensing toward ammonia (30 ppb), and volatile organic compounds (10 ppm). Our work highlights the q2D PANI as promising electroactive materials for thin-film organic electronics.

Date: 2019
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DOI: 10.1038/s41467-019-11921-3

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