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Modelling and Characterization of Novel Reference-Less Semiconductor Ion Sensor for pH Sensing
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2019 (English)In: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 281, p. 60-71Article in journal (Refereed) Published
Abstract [en]

A SPICE macromodel is developed for a novel reference-less semiconductor ion sensor (RELESIS), which has been proposed to eliminate the use of reference electrode in the field effect based sensor detection. The working principle of the RELESIS, previously validated by a prototype device via pH sensing, is featured by non-constant bulk solution potential, which distincts itself from any conventional ion sensitive field effect transistor. Simulations are performed here using the macromodel and the results fit well with the experimental data. The proposed SPICE macromodel can be used to predict the behavior of the RELESIS and carry out performance optimizations for the RELESIS to be used in various applications.

Place, publisher, year, edition, pages
2019. Vol. 281, p. 60-71
Keywords [en]
Extended gate, Parasitic effects, pH response, Potential of the bulk solution, Reference-less semiconductor ion sensor (RELESIS), SPICE macromodel of the RELESIS
National Category
Medical Laboratory and Measurements Technologies
Identifiers
URN: urn:nbn:se:uu:diva-364769DOI: 10.1016/j.snb.2018.07.175ISI: 000455021500009OAI: oai:DiVA.org:uu-364769DiVA, id: diva2:1260336
Funder
Swedish Research Council, 621-2014-5591Swedish Research Council, 621-2014-6300Available from: 2018-11-02 Created: 2018-11-02 Last updated: 2019-01-30Bibliographically approved

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Zhang, Shi-Li

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