Organic vapour sensing using thin films of a co-ordination polymer: comparison of electrical and optical techniques

Langmuir–Blodgett (LB) films of the co-ordination polymer, poly(CuMBSH), have been used as the sensing layer for the detection of organic vapours (benzene, ethanol, toluene, acetonitrile and water) using the techniques of surface plasmon resonance (SPR) and admittance spectroscopy. Reversible change...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 1999-09, Vol.57 (1), p.28-34
Main Authors: Casalini, R., Wilde, J.N., Nagel, J., Oertel, U., Petty, M.C.
Format: Article
Language:English
Subjects:
Admittance spectroscopy
Chemical sensor
Langmuir-Boldgett films
Langmuir–Blodgett films
Polymers
Surface plasmon resonance
Vapour sensing
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Summary:Langmuir–Blodgett (LB) films of the co-ordination polymer, poly(CuMBSH), have been used as the sensing layer for the detection of organic vapours (benzene, ethanol, toluene, acetonitrile and water) using the techniques of surface plasmon resonance (SPR) and admittance spectroscopy. Reversible changes in the optical and electrical behaviour, respectively, were observed. For both methods, the results were interpreted in terms of a bulk dissolution of vapour in the polymer film. A comparison of the two techniques is given.
ISSN:0925-4005
1873-3077
DOI:10.1016/S0925-4005(99)00058-1