An ionophoretic chemically sensitive solid state transducer
An ionophoretic chemically sensitive solid state transducer
This thesis is concerned with the design and evaluation of a novel type of chemically sensitive transistor. The transistor relies for its operation on the specific bulk absorption of an ionic species into a macroscopic phase on the surface of a conventional insulated gate. field effect transistor, as opposed to the usual surface adsorption phenomenon exploited in a conventional Nernstian device. A mathematical model of the device is evolved, and found to agree well with the experimental results. As a consequence of both theoretical calculations and experimental measurements, it is concluded that the sensitivity of this type of transducer is much less than that of the more conventional type, especially at low specific ion concentrations. However, these studies are preliminary, and it may be possible to develop a substantially improved device.
University of Southampton
1981
Brown, Andrew David
(1981)
An ionophoretic chemically sensitive solid state transducer.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
This thesis is concerned with the design and evaluation of a novel type of chemically sensitive transistor. The transistor relies for its operation on the specific bulk absorption of an ionic species into a macroscopic phase on the surface of a conventional insulated gate. field effect transistor, as opposed to the usual surface adsorption phenomenon exploited in a conventional Nernstian device. A mathematical model of the device is evolved, and found to agree well with the experimental results. As a consequence of both theoretical calculations and experimental measurements, it is concluded that the sensitivity of this type of transducer is much less than that of the more conventional type, especially at low specific ion concentrations. However, these studies are preliminary, and it may be possible to develop a substantially improved device.
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Published date: 1981
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Local EPrints ID: 460551
URI: http://eprints.soton.ac.uk/id/eprint/460551
PURE UUID: e1987ee0-568b-4f25-a996-5cee2c91de5f
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Date deposited: 04 Jul 2022 18:24
Last modified: 04 Jul 2022 18:24
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Author:
Andrew David Brown
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