Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 517086
Title Improving the limits of detection in sensor systems
Author(s) Bent, J.F. van der
Source University. Promotor(en): Cees van Rijn. - Wageningen : Wageningen University - ISBN 9789463430555 - 127
Department(s) VLAG
Laboratory for Organic Chemistry
Publication type Dissertation, internally prepared
Publication year 2017
Keyword(s) sensors - data processing - nanotechnology - potentiometers - detection - gegevensverwerking - nanotechnologie - detectie
Categories Engineering (General)
Abstract

Nowadays, sensors are designed to consume less power with decreased size, making them suitable for application in low-power wireless sensor networks (WSN) systems. The challenge is not to compromise on the sensor’s sensitivity and selectivity towards the target. This thesis studies various options to improve the limits of detection. Usually, sensors are limited in detection range and resolution; they are also restricted by cross sensitivity towards other target agents and other parameters. This cross sensitivity, towards humidity and temperature, for instance, reduces the sensor’s detection limit and, therefore, its usability. This work discusses three examples where the limit of detection has been investigated, localised and improved with nanotech-based sensors.

The first example is a nanowire-based hydrogen sensor. The second example was based on a potentiometric-sensor principle, capable of sensing CO2. The third example is an Inter-Digitated Electrode (IDE) sensor, capable of selective sensing through the coating of an active layer.

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