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Journal Article

Transparent and flexible carbon nanotube/polypyrrole and carbon nanotube/polyaniline pH sensors

MPS-Authors
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Ferrer-Anglada,  N.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Kaempgen,  M.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Roth,  S.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Ferrer-Anglada, N., Kaempgen, M., & Roth, S. (2006). Transparent and flexible carbon nanotube/polypyrrole and carbon nanotube/polyaniline pH sensors. physica status solidi (b), 243(13), 3519-3523.


Cite as: https://hdl.handle.net/21.11116/0000-000E-FFEF-7
Abstract
Thin film Carbon Nanotube (CNT) networks are used as a conductive,
transparent and flexible electrode for electrochemically depositing a
conducting polymer on it, polypyrrole or polyaniline in the present
work. We analyse the properties of the device as an electrochemical
sensor, measuring his pH dependence by recording the open circuit
potential in various buffer solutions, ranging from pH 1 to 13. The
results show a good sensitivity, linearity and stability in both cases.
In the case of CNT/polyaniline, it can be used simply as an optical
sensor, as the colour of polyaniline changes with pH. The
CNT/polypyrrole and CNT/polyaniline devices could have applications as
solid state gas sensor or biosensor deposited on any shape of surface
that can be transparent and flexible. (c) 2006 WILEY-VCH Verlag GmbH &
Co. KGaA, Weinheim.